Opel Monza A1 2.5 E (136 Hp)
Overall Rating
Opel Monza:
The Opel Monza is an executive fastback coupe produced by the German automaker Opel from 1977 to 1986. It was marketed in the United Kingdom as the Vauxhall Royale Coupé by Vauxhall.
The Monza was planned as a successor for the Commodore Coupé. In the late 1970s the Commodore C model was made as a two-door version , but still as a sedan type car. The first model of the Commodore the "A" series had a regular coupé in the production line and Opel desired to make a newer version of their large luxury coupé. Work began in 1976 and in 1978 the first Monzas were available to buy. The cars to compete with would be the Mercedes-Benz C123 and later the Mercedes-Benz C124 and the BMW 6 Series models , and any other large luxury coupe. There was plenty of space inside for the class, and the seats were upmarket....(Read more on Wikipedia)
A1 Overview:
Opel Monza (A1). With 185 Nm of torque, it offers ample pulling power. With a weight of 1370 kg, it falls in the mid‑range. Rear‑wheel drive offers dynamic handling and sporty feedback. Acceleration is relatively slow (0–100 km/h in 11 s). The top speed reaches 195 km/h. A two-door car with a fixed roof, known for its sporty design and dynamic performance. Seating for 4 makes it ideal for daily use.
The Opel Monza A1 predates modern Euro NCAP testing standards, so no official rating is available. Safety features would be basic by contemporary standards of its production era.
2.5 E (136 Hp) Verdict:
Performance Verdict
A competent entry-level inline-six, providing sufficient power for daily driving and comfortable cruising, though not overtly sporty compared to the 3.0L units.
Fuel Economy
Likely the most balanced option for fuel consumption among the six-cylinder engines, offering reasonable efficiency for its size and era.
Pros and Cons:
Pros:
- • Smooth and powerful inline-six engines
- • Comfortable and spacious interior for a coupe
- • Distinctive grand tourer styling
- • Rear-wheel drive handling
- • Good trunk space for its class
Cons:
- • Fuel consumption can be high, especially on performance models
- • Safety features are basic by modern standards
- • Rust can be a significant issue on older models
- • Parts availability can be challenging for some components
- • Handling can feel dated compared to modern cars
Specifications:
Specifications are compared to those of the previous generation(A1: 1978 - 1982).
| General: | |
|---|---|
| Brand: | Opel |
| Model: | Monza |
| Generation: | A1 |
| Modification (Engine): | 2.5 E (136 Hp) |
| Start of production: | 1981 |
| End of production: | 1986 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Coupe |
| Seats: | 4 |
| Doors: | 3 |
| Engine: | |
|---|---|
| Power: | 136 Hp @ 5600 rpm. Same horsepower |
| Power per litre: | 54.6 Hp/l [Same length.] |
| Torque: | 185 Nm @ 4600 rpm. |
| Engine Model/Code: | H25E More details about the engine H25E |
| Engine displacement: | 2490 |
| Number of cylinders: | 4 |
| Engine configuration: | Inline |
| Number of valves per cylinder: | 2 |
| Fuel injection system: | Multi-port manifold injection |
| Engine aspiration: | Naturally aspirated engine |
| Valvetrain: | SOHC |
| Engine oil capacity: | 5.5 l |
| Coolant: | 10.1 l |
| Engine layout: | Front, Longitudinal |
| Performance: | |
|---|---|
| Fuel Type: | Petrol (Gasoline) |
| Acceleration 0 - 100 km/h: | 11 sec |
| Acceleration 0 - 62 mph: | 11 sec |
| Maximum speed: | 195 km/h |
| Weight-to-power ratio: | 10.1 kg/Hp, 99.3 Hp/tonne |
| Weight-to-torque ratio: | 7.4 kg/Nm, 135 Nm/tonne |
| Acceleration 0 - 60 mph: | 10.5 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1370 |
| Max. weight: | 1900 |
| Max load: | 530 |
| Trunk (boot) space - maximum: | 765 l |
| Trunk (boot) space - minimum: | 425 l |
| Fuel tank capacity: | 70 l |
| Size: | |
|---|---|
| Length: | 4692 mm mm [Same length.] |
| Width: | 1734 mm mm [Same width.] |
| Height: | 1380 mm mm [Same height.] |
| Wheelbase: | 2668 mm mm [Same wheelbase.] |
| Front track: | 1443 mm |
| Rear (Back) track: | 1472 mm |
| Ride height (ground clearance): | 140 mm |
| Minimum turning circle (turning diameter): | 10.8 m [above average] |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears | 4 |
| Transmission type | Manual |
| Front brakes | Ventilated discs [Best for performance and cooling.] |
| Rear brakes | Disc [above average] |















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