Holden Calibra
| Company type | Automobile model |
|---|---|
| Industry | Automotive |
| Predecessor | Opel Manta |
| Founded | 1989 |
| Defunct | 1997 |
| Headquarters | Rüsselsheim and Uusikaupunki , Germany and Finland |
Area served | Europe, United Kingdom, South America, Australasia |
| Products | Coupé cars |
The Opel Calibra is a coupé developed and manufactured by the German carmaker Opel from 1989 until 1997. In the United Kingdom, it was retailed as the Vauxhall Calibra up to 1999, while in South America and Australasia, it appeared under the names Chevrolet Calibra and Holden Calibra, respectively.
Designed to succeed the Manta and rival Japanese sport coupés, the Calibra was built on the running gear of the first-generation Opel Vectra, which debuted in 1988. Initial production occurred at Opel's Rüsselsheim facility in Germany before shifting entirely to Valmet Automotive’s plant in Uusikaupunki, Finland from November 1995 onward. The model was initially available with front-wheel drive, with a four-wheel-drive configuration introduced in November 1990.
Design
The Opel Calibra’s styling was crafted by GM’s Wayne Cherry alongside German designer Erhard Schnell. Built as a front-wheel drive three-door hatchback coupé based on the Vectra A platform, it shared similar ride and handling characteristics with the family car but featured a reinforced chassis offering improved torsional stiffness. The turbocharged four-wheel-drive variant incorporated an independent rear suspension system derived from the Opel Omega A. Additionally, performance-focused limited editions such as the DTM and Last Edition benefited from Irmscher suspension enhancements for more precise handling.
Utilizing the Vectra A chassis combined with a hatchback rear design provided practicality rarely found in coupés of this segment, comfortably accommodating four average-sized adults and offering a luggage capacity of 300 liters.
A notable innovation was the exceptionally slim headlamp standing just 7 cm tall, made possible through ellipsoid technology developed in collaboration with Hella. This advancement contributed both to the vehicle’s aesthetic appeal and aerodynamic efficiency.
At its debut in 1989, the Calibra held the distinction of being the most aerodynamically efficient production car globally, achieving a drag coefficient (Cd) of 0.26. This performance resulted from extensive wind tunnel testing and aerodynamic refinements including tapered rear waistlines, optimized panel joints, front spoilers, and underbody paneling. The Calibra maintained this aerodynamic advantage for ten years until it was overtaken by the Honda Insight in 1999, which recorded a Cd of 0.25.
Subsequent versions equipped with 16V engines, V6 powertrains, four-wheel drive systems, and turbocharged units exhibited a slightly increased drag coefficient of 0.29 due to modifications in cooling arrangements, underbody design elements, wheel styles, and glass components.
Identification of Assembly Plant
Manufacturing of the Calibra took place at Opel’s Rüsselsheim plant in Germany as well as at Valmet Automotive’s facility in Uusikaupunki, Finland—where over 90,000 vehicles were produced. Notably, Valmet also exclusively assembled models such as the Porsche Boxster and Saab 9-3 Cabriolet.
Decoding Vehicle Identification Numbers:
WOL : Adam Opel AG 0000 : Serial number 85 : Model designation - Calibra V : Year of manufacture - 1997
Followed by: 9 : Production site - Uusikaupunki, Finland (Valmet Automotive) 1 : Production site - Rüsselsheim, Germany (Adam Opel AG)
Industry experts often regard Finnish-built Calibras as superior in terms of build quality. Conversely, vehicles produced at Rüsselsheim were noted for cost-saving measures that compromised rust protection—particularly due to insufficient preservatives applied to wheel arches—making "1" coded models more prone to corrosion.
Commercial life
The Calibra enjoyed stronger market performance across Europe compared to competitors like the Ford Probe, which was criticized for lacking power and possessing styling deemed too Americanized for European preferences. When Vauxhall introduced their version to the UK market in June 1990, they targeted annual sales of 15,000 units; however, this goal remained unmet.
Following General Motors’ acquisition of a stake in Saab in July 1990, there were intentions to rebadge the Calibra as a Saab model for sale in the United States; nevertheless, these plans did not come to fruition. Likewise, a convertible variant was proposed but never brought into production.
A minor facelift during summer 1994 repositioned the brand emblem onto the grille and upgraded equipment levels alongside safety features. Throughout its production run, numerous special editions were launched.
In the UK market, limited editions commenced with the 'Tickford' conversion released in October 1991—limited to only 26 units—followed by Vauxhall’s SE series ranging from SE1 (1993) through SE9 (1997). These editions included exclusive paint options such as solar yellow (SE2) and "Icelandic" blue (SE6). The Keke Rosberg edition commemorated success in the German Touring Car Championship. Continental Europe received special variants named "DTM," "Cliff," "Colour," and "Last," some featuring lowered Irmscher suspension setups and numbered plaques. These limited runs typically numbered around one thousand units each.
Production of final Calibra Turbo models concluded in early 1997 and were succeeded by Turbo Limited Editions aimed at the UK market—featuring jet black paintwork with Irmscher spoilers, BBS RX 16-inch alloy wheels, lowered suspension setups, heated cream leather interiors, and numbered badges.
On mainland Europe, the Last Edition offered extensive extras including full Irmscher body kits and BBS alloy wheels.
Although production of the Vectra A ceased in September 1995, manufacturing of the Calibra continued until June 1997. Opel did not introduce another mid-sized coupé until launching the Astra Coupé in 2000; later that year saw the arrival of the Speedster roadster reestablishing Opel’s sports car presence.
Total production estimates range between approximately 238,164 and 239,118 units worldwide with around 93,978 assembled at Valmet’s Finnish facility. Engine variants include nearly 130,000 fitted with 8-valve engines, about 83,000 with 16-valve units, roughly 14,000 Turbo models and approximately 12,000 powered by V6 engines. Principal markets comprised Germany (~100,000 units), United Kingdom (>40,000), Italy (>27,000), Spain (>17,000), France (~13,000), and Switzerland (>10,000). Austria, Belgium and Netherlands each accounted for about 5,000 units. Presently only a small fraction remain operational: roughly 5,060 registered in Germany; about 450 still on UK roads; and near 750 active within the Netherlands.
Equipment
Throughout the Calibra's production period, both its standard and optional features experienced considerable development.
At launch, the Calibra 8 valve came equipped with a 20W stereo system featuring two speakers and a cassette player, sports-style front seats including height adjustment for the driver, rear seats that could fold in a split configuration, ABS, power-assisted steering, electrically adjustable side mirrors, an analog clock positioned on the center console, vanity mirrors integrated into the sunvisors, a lockable glove compartment, tinted glass, 14-inch alloy wheels, and bumpers matching the body color. Available extras included air conditioning, power windows, fog lamps, an onboard computer, and a sunroof.
Models with updated styling and larger engines provided upgraded amenities such as air conditioning, traction control systems, power windows, a 30W stereo with six speakers (or alternatively a 150W Bose sound system complete with subwoofer), CD changer, central locking mechanism, immobiliser security feature, leather seats with heating for the front occupants, onboard computer, sunroof, dual airbags equipped with pre-tensioners, an alarm system incorporating motion detectors, and alloy wheels sized either 15 or 16 inches.
Exterior colors
Throughout its manufacturing span, the Opel Calibra was offered in 28 distinct paint shades—only nine of which were variations of black, gray, or white. Usually, no more than six colors were available at any one time due to frequent changes in the palette. Special editions typically presented a more limited range of colors compared to standard versions. The selection of colors differed depending on the market and specific edition.
| Exterior Colors (paint code) | Model | |||||||
|---|---|---|---|---|---|---|---|---|
| Standard | Color
Edition |
Keke
Rosberg |
DTM | Cliff | Last
Edition |
SE-SE9
(UK) |
Turbo LE
(UK) | |
| 119 Mistralgrau-Metallic / Mistral Grey | ✔ | |||||||
| 128 Astrosilber-Metallic / Astro Silver | ✔ | |||||||
| 138 Starsliber-Mineraleffekt / Star Silver | ✔ | |||||||
| 140 Rauchgrau-Metallic / Smoke Grey | ✔ | |||||||
| 144 Magicgrau-Mineraleffekt / Magic Grey | ✔ | ✔ | ✔ | |||||
| 146 Titaniumsilber-Mineraleffekt / Olive Grey | ✔ | ✔ | ||||||
| 200 Schwarz-Uni / Jet Black | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ||
| 262 Baikalblau-Metallic / Westminster Blue | ✔ | |||||||
| 265 Tech Violett-Metallic / Silk Violet | ✔ | |||||||
| 266 Novaschwarz-Metallic / Diamond Black | ✔ | |||||||
| 270 Spektralblau-Mineraleffekt / Spectral Blue | ✔ | |||||||
| 277 Karibikblau-Metallic / Caribic Blue | ✔ | ✔ | ✔ | ✔ | ||||
| 279 Heliotrop-Mineraleffekt / Aurora / High Voltage | ✔ | |||||||
| 283 Nautilusblau-Mineraleffekt / Nautilus Blue | ✔ | ✔ | ||||||
| 286 Keramikblau-Mineraleffekt / Ceramic Blue | ✔ | ✔ | ✔ | |||||
| 288 Magneticblau-Mineraleffekt / Magnetic Blue | ✔ | ✔ | ✔ | ✔ | ||||
| 290 Nordkap-Mineraleffekt / North Cape | ✔ | ✔ | ||||||
Within the Cliff Motorsport Edition, the colors were rebranded as Ocean (Magnetic Blue), Polar (Caribic Blue), and Barracuda (Ceramic Blue). Some of the later Keke Rosberg and DTM variants utilized colors from the standard palette. The availability of paint options was dependent on both market location and specific edition.
Engines
The initial engine lineup included a 2.0 litre 8-valve C20NE and a 16-valve fuel-injected four-cylinder petrol engine, the C20XE, designed by Cosworth.
In 1992, the range expanded to include the turbocharged 2.0 litre 16-valve C20LET, a turbocharged variant of the C20XE. This model featured all-wheel drive, a six-speed Getrag manual gearbox (F28/6), and was reported to reach a maximum velocity of 245 km/h (152 mph). The Turbo version was distinguished by its five-stud wheel hubs and pronounced negative camber on the rear wheels.
A 2.5 litre V6 engine (C25XE or SE4) was introduced in 1993, offered with both manual and automatic transmission options. Although it delivered less power than the Turbo model, the V6 was known for greater smoothness and dependability. In 1995, the classic C20XE was updated to the X20XEV Ecotec engine, which produced lower output, while the Turbo continued with the C20LET powerplant.
- 2.0 litre 8-valve SOHC inline-four – (C20NE)
- 2.0 litre 16-valve DOHC inline-four – (1990–1995) (C20XE or redtop)
- 2.0 litre 16-valve DOHC Ecotec inline-four – (1995–1997) (X20XEV)
- 2.0 litre 16-valve DOHC turbocharged inline-four – (1992–1997) (C20LET)
- 2.5 litre 24-valve DOHC Ecotec V6 – (1993–1997) (C25XE from 1994 to 1996; X25XE in 1997)
Engine offerings depended on the specific model, trim level, and regional market.
Technical data
| 2.0 i | 2.0 i 16V | 2.0 i 16V Turbo | 2.5 i V6 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Production period | 11/1989–07/1996 | 11/1989–02/1994 | 02/1994–06/1997 | 03/1992–07/1996 | 04/1993–07/1996 | 08/1996–06/1997 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Engine data | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Engine code | C20NE | C20XE | X20XEV | C20LET | C25XE | X25XE | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Engine type | I4 gasoline engine | V6 gasoline engine | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Valves per Cylinder | 2 | 4 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Valvetrain | OHC, Timing belt | DOHC, Timing belt | 2 × DOHC, Timing belt | Fuel injection type | Manifold injection | Turbocharger | – | Turbocharger, Air Intercooler | – | Cooling | Water-cooled | Bore × Stroke | 86.0 mm × 86.0 mm |
81.6 mm × 79.6 mm |
Displacement | 1,998 cm³ | 2,498 cm³ | Compression Ratio | "9.2:1" | "10.5:1" | "10.8:1" | "9.0:1" | "10.8:1" | "10.8:1" | Max Power at rpm |
"85 kW (115 PS) /5200" |
"110 kW (150 PS) /6000" |
"100 kW (136 PS) /5600" |
"150 kW (204 PS) /5600" |
"125 kW (170 PS) /6000" |
"125 kW (170 PS) /5800" |
Max Torque at rpm |
"170 Nm /2600" |
"196 Nm /4800" |
"185 Nm /4000" |
"280 Nm /2400" |
"227 Nm /4200" |
"230 Nm /3200" |
Emission Standard | "Euro 1" | "Euro 1" | "D3" | "Euro 1" | "Euro 1" | "D3" | Drivetrain | Drivetrain, standard | "Front Wheel Drive" colspan=3 | "4 Wheel Drive" | "Front Wheel Drive" colspan=2 | Drivetrain, optional | "4 Wheel Drive" colspan=3 | |||||||||||||||||||||||||||||||||||||||||
| Transmission, standard | "5 Gear Manual Transmission" colspan=3 | "6 Gear Manual Transmission" | "5 Gear Manual Transmission" colspan=2 | Transmission, optional | "4 Gear Automatic Transmission" | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Performance & Efficiency | Top Speed | "205 km/h (200 km/h) [200 km/h]" | "223 km/h [215 km/h]" | "215 km/h (205 km/h) [200 km/h]" | "245 km/h [Turbo]" | "237 km/h (234 km/h)" colspan=2 | Acceleration, 0–100 km/h (62 mph) | "10.0 s (12.0 s) [11.0 s]" | "8.5 s [9.5 s]" | "9.5 s (11.5 s)" | "6.8 s [Turbo]" | "7.8 s (8.8 s)" colspan=2 | Consumption per 100 km (combined) | "8.2 L (8.4 L) [9.0 L]" | "7.7–7.9 L (8.0–8.1 L) [8.7 L]" | "9.0 L [Turbo]" | "8.8 L (9.0 L)" colspan=2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Transmissions
Most models, except for the C20LET, were equipped with Aisin four-speed automatic gearboxes. In addition, Getrag manufactured five manual transmissions: four five-speed units and one six-speed variant, the F28/6. These are detailed as follows:
- F16CR-5 – Designed for early 2.0 litre SOHC naturally aspirated engines (C20NE)
- F18CR-5 – Utilized in later 2.0 litre SOHC and DOHC naturally aspirated engines (C20NE, X20XEV)
- F20 – Applied to early 2.0 litre DOHC naturally aspirated engines (C20XE)
- F25 – Suited for 2.5 litre naturally aspirated engines (C25XE, X25XE)
- F28/6 – Six-speed gearbox for 2.0 litre turbocharged engines (C20LET)
- AF20 – Used in late 2.0 litre SOHC and DOHC naturally aspirated engines (C20NE, X20XEV) as well as 2.5 litre naturally aspirated units (C25XE, X25XE)
All-wheel-drive versions featured a transfer case shared with the Vauxhall Cavalier AWD model, which was vulnerable to damage caused by uneven tyre wear or pressure discrepancies between the front and rear axles. To avoid expensive repairs, it was essential to rotate front and rear tyres every 3,000 to 15,000 miles (approximately 5,000 to 24,000 kilometers). Additionally, all four tyres had to be identical in brand and model, with simultaneous replacement required if any tyre was compromised—highlighting strict maintenance protocols necessary to safeguard the transfer case.
Dimensions
- Overall length: 4492 mm
- Width (excluding mirrors): 1688 mm
- Height (unladen): 1320 mm
- Wheelbase length: 2600 mm
- Front/rear track width: 1426/1446 mm
- Tyre specifications: 175/70 R14, 195/60 R14 85 V, 195/60 R15, 205/55 R15, 205/50 R16 87 W
- Turning radius: 11.44 meters
Safety and Sustainability
The Calibra integrated recycled materials into various parts such as headlight surrounds, bumper brackets, inlet manifolds, and fender liners, demonstrating early adoption of environmentally conscious design. The vehicle also employed water-based paints and air conditioning systems free from chlorofluorocarbons (CFCs).
Starting in early 1993, every Calibra was fitted with a driver's airbag; by August of that year, a full-size passenger airbag became standard equipment. Other safety improvements included reinforced double steel tubes within doors to enhance side impact protection, strengthened door sills, pillars, and roof structures, alongside front seat belt pre-tensioners—all reflecting Opel’s ongoing dedication to occupant safety throughout the model’s lifecycle.
Deutsche Tourenwagen Meisterschaft/FIA International Touring Car Championship
DTM and ITC competition vehicles featured an all-wheel-drive configuration with engines mounted longitudinally. Initially, these race cars were powered by a naturally aspirated V6 engine developed by Cosworth, featuring a 54-degree bank angle and based on General Motors’ iron block/aluminium head C25XE. Between 1993 and 1995, output increased steadily.
In response to rule changes in 1996, Opel transitioned to the all-aluminium Cosworth KF V6 engine with a 75-degree layout derived from the Isuzu 6VD1, originally used in Trooper/Amigo models. This powerplant enabled Opel to secure the ITC championship title in 1996. The Isuzu-based KF V6 was capable of reaching up to 15,000 rpm. The final known example equipped with this engine is the Zakspeed Calibra Concept 2 prototype, which served as a development platform for the cancelled FIA ITC season of 1997. While Opel concentrated on front-wheel-drive touring cars thereafter, AMG-Mercedes developed the Mercedes CLK GTR for the 1997 FIA GT Championship, achieving notable success.
South African Wesbank Modifieds Series
For participation in South Africa's top-tier Wesbank Modifieds Series, Delta Motor Corporation commissioned a unique Calibra race vehicle. Owen Ashley Auto Developments, based in Cape Town, was responsible for its design and construction in late 1990, supported by DMC. The car complied with Class A regulations, which closely resembled those of the American IMSA GT series.
The chassis featured an aluminium honeycomb floorpan combined with a chrome-moly steel spaceframe. It retained the standard Calibra roof, side body monocoque panels, doors, and rear window, while other exterior components were crafted from fibreglass. Power came from a 3.5-litre all-aluminium odd-fire V6 engine derived from the Buick 3800, akin to the IMSA Corvette GTP powerplant. This engine, built by Ryan Falconer in the United States, maintained its single-cam pushrod two-valve configuration but was enhanced with Racetronics engine management and a Garrett turbocharger fitted with a 52mm restrictor plate, delivering approximately 600 BHP (447 kW). Torque was transmitted through a carbon-fibre driveshaft to a rear-mounted five-speed Hewland manual transaxle. The suspension setup included double-wishbones both front and rear, and the fuel tank capacity was 40 litres.
Piloted by Michael Briggs, the Calibra competed from 1991 until 1993. Following the 1994 prohibition of turbocharged engines and the increasing prominence of Group A super touring cars, DMC withdrew the Calibra from competition to redirect its motorsport resources towards its two-car Astra super touring program.
Rallying
The Calibra Turbo also took part in rally events with modest achievements. Notably, a Calibra secured ninth place at the 1992 Sanremo Rallye driven by Bruno Thiry, registering as the fastest vehicle within the 1600 to 2000 cc category.
1992 Calibra Cabrio Prototypes
Although the Coupé enjoyed success, Opel tasked Valmet Automotive in 1992 with producing fully operational convertible Calibra prototypes to counter competitors’ mid-size convertible offerings. Valmet created two red-colored prototypes equipped with the 2.0-litre, 8-valve engine alongside a third body shell for durability testing. However, compromises in rear seating and luggage space led to discontinuation of further development. One of these prototypes is currently exhibited in Opel Classic’s concept car collection.
1997 Calibra B Design Study
In 1996, Opel initiated development of a Calibra replacement based on the Vectra B, but the initiative was ultimately abandoned because it did not fit within General Motors’ global plans. A non-operational full-scale model from early 1997 remained hidden for over two decades before being unveiled during Calibra A’s thirtieth anniversary celebrations. Painted red and featuring a rudimentary interior alongside asymmetrical headlights used for design evaluation, this model is now part of Opel Classic’s exhibition.
2007 GTC Concept
The Opel GTC Concept, introduced in March 2007, was associated with the Calibra name but did not proceed to production. Instead, it served as an inspiration for the first-generation Opel Insignia, particularly influencing its high-performance OPC variant. Elements such as bold vertical front air intakes, rear exhaust outlets, and wheel designs were adopted from this concept. The GTC Concept remains on display within Opel Classic’s concept car section.