The Opel Kadett C Coupe 2.0 E Rallye, produced between 1977 and 1979, represented a performance-oriented variant within the broader Kadett C Coupe range. Positioned as a sporty offering, it aimed to provide a more engaging driving experience than the standard Kadett models. The Kadett C, launched in 1972, was a significant update to the Kadett B, offering increased interior space and a more modern design. The Coupe version, and particularly the 2.0 E Rallye, sought to capture a segment of the market desiring a compact, rear-wheel-drive coupe with respectable performance. It was a key model for Opel in Europe during a period of increasing competition in the small car segment.
Technical Specifications
| Brand | Opel |
| Model | Kadett |
| Generation | Kadett C Coupe |
| Type | 2.0 E Rallye (110 Hp) |
| Start of production | 1977 |
| End of production | 1979 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 5 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 9 sec |
| Acceleration 0 – 62 mph | 9 sec |
| Acceleration 0 – 60 mph | 8.6 sec |
| Maximum speed | 189 km/h (117.44 mph) |
| Weight-to-power ratio | 8.4 kg/Hp, 119.6 Hp/tonne |
| Weight-to-torque ratio | 5.8 kg/Nm, 172.8 Nm/tonne |
| Power | 110 Hp @ 5400 rpm |
| Power per litre | 55.6 Hp/l |
| Torque | 159 Nm @ 3400 rpm (117.27 lb.-ft. @ 3400 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | 20E |
| Engine displacement | 1979 cm3 (120.77 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 95 mm (3.74 in.) |
| Piston Stroke | 69.8 mm (2.75 in.) |
| Compression ratio | 9.4:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 3.8 l (4.02 US qt | 3.34 UK qt) |
| Coolant | 6.6 l (6.97 US qt | 5.81 UK qt) |
| Kerb Weight | 920 kg (2028.25 lbs) |
| Max. weight | 1295 kg (2854.99 lbs) |
| Max load | 375 kg (826.73 lbs) |
| Fuel tank capacity | 43 l (11.36 US gal | 9.46 UK gal) |
| Length | 4127 mm (162.48 in) |
| Width | 1580 mm (62.2 in) |
| Height | 1340 mm (52.76 in) |
| Wheelbase | 2395 mm (94.29 in) |
| Front track | 1300 mm (51.18 in) |
| Rear track | 1299 mm (51.14 in) |
| Minimum turning circle | 9.2 m (30.18 ft) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears | 5 gears, manual transmission |
| Front brakes | Disc |
| Rear brakes | Drum |
Powertrain & Engine Architecture
The heart of the Kadett C Coupe 2.0 E Rallye was the 20E engine, a 1979cc inline-four cylinder unit. This engine featured a single overhead camshaft (SOHC) valvetrain operating two valves per cylinder. Crucially, it employed Bosch mechanical multi-port fuel injection, a significant upgrade over the carbureted engines found in lower-spec Kadett models. This injection system contributed to improved throttle response and fuel efficiency. The 20E produced 110 horsepower at 5400 rpm and 159 Nm (117.27 lb-ft) of torque at 3400 rpm. The engine was mounted longitudinally in the front of the vehicle, driving the rear wheels. The five-speed manual transmission was the only gearbox option available for this variant, emphasizing its sporting intentions. The engine code ’20E’ designated this specific high-output version of the four-cylinder engine.
Driving Characteristics
The 2.0 E Rallye offered a noticeably more spirited driving experience compared to the standard Kadett C Coupes. The combination of the fuel-injected engine and the five-speed gearbox allowed for brisk acceleration, achieving 0-60 mph in approximately 8.6 seconds and a top speed of 117.44 mph. While not a high-performance sports car by modern standards, it was competitive within its class in the late 1970s. The rear-wheel-drive layout provided a balanced feel, although oversteer could be induced with aggressive driving. The five-speed transmission allowed drivers to keep the engine in its optimal power band, enhancing responsiveness. Compared to the lower-powered Kadett variants, the 2.0 E Rallye felt significantly more capable on winding roads and during highway overtaking maneuvers.
Equipment & Trim Levels
The 2.0 E Rallye was generally well-equipped for its time, though options were available to further enhance the interior. Standard features typically included upgraded cloth upholstery, a sports steering wheel, and a more comprehensive instrument cluster. Exterior features included distinctive Rallye badging, often accompanied by a rear spoiler. Optional extras could include a sunroof, upgraded audio systems, and alloy wheels. The interior design was functional and driver-focused, reflecting the car’s sporty character. While not luxurious, the interior offered a comfortable and practical environment for both driver and passengers.
Chassis & Braking
The Kadett C Coupe utilized a relatively simple but effective chassis design. It featured independent front suspension with MacPherson struts and a rigid rear axle with trailing arms. The 2.0 E Rallye benefitted from a slightly stiffer suspension setup compared to the standard models, improving handling and reducing body roll. Braking was accomplished via disc brakes on the front wheels and drum brakes on the rear. While adequate for normal driving conditions, the braking system lacked the stopping power of more modern vehicles. The car’s relatively light weight (around 2028 lbs) helped to mitigate the limitations of the braking system.
Market Reception & Comparison
The Kadett C Coupe 2.0 E Rallye was generally well-received by automotive journalists and enthusiasts. It was praised for its lively performance, engaging handling, and relatively affordable price. Compared to other coupes in its class, such as the Ford Capri, the Kadett offered a more compact and fuel-efficient package. However, some critics noted the relatively basic interior and the limitations of the rear drum brakes. The 2.0 E Rallye was positioned above the base Kadett Coupe and the 1.6-liter versions in terms of price and performance. It offered a compelling alternative to larger, more expensive sports coupes.
Legacy
The Opel Kadett C Coupe 2.0 E Rallye remains a popular classic car among enthusiasts today. The 20E engine is known for its durability and relative simplicity, making it a relatively easy engine to maintain. However, finding original parts can be challenging. The rear-wheel-drive layout and sporty character of the 2.0 E Rallye continue to appeal to drivers who appreciate a classic driving experience. While not as highly sought after as some other classic Opel models, the Kadett C Coupe 2.0 E Rallye represents a significant chapter in Opel’s history and a testament to the enduring appeal of compact, rear-wheel-drive coupes.
