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Opel Astra H TwinTop 1.8i 16V ECOTEC (140 Hp) Automatic
Overall Rating
Opel Astra:
The Opel Astra is a compact car/small family car developed and produced by the German automaker Opel since 1991, currently at its sixth generation. It was first launched in September 1991 as a direct replacement to the Opel Kadett. As of 2025, the car slots between the smaller Corsa supermini and the larger Frontera subcompact crossover SUV.
Initially, the Astra was available in hatchback, saloon, and estate forms. A panel van and a convertible also appeared in the early 1990s. These body styles were later followed by a coupé in 2004, and the sporty Astra OPC appeared in 2005. The Twin Top retractable hardtop convertible replaced the soft top convertible in 2006, while the Caravan was renamed to Astra Sports Tourer since 2009....(Read more on Wikipedia)
H TwinTop Overview:
Opel Astra (H TwinTop). With 175 Nm of torque, it offers ample pulling power. It has moderate fuel consumption (~10.7 l/100km). With a weight of 1400 kg, it falls in the mid‑range. Front‑wheel drive delivers efficiency and easy handling. Acceleration is relatively slow (0–100 km/h in 12.7 s). The top speed reaches 189 km/h. A convertible with a retractable hardtop, offering the benefits of both coupe and cabriolet. Seating for 4 makes it ideal for daily use.
1.8i 16V ECOTEC (140 Hp) Automatic Verdict:
Performance Verdict
Adequate for cruising, but the automatic gearbox dulls acceleration, making it feel less sprightly than its manual counterpart.
Fuel Economy
Moderate fuel consumption for an automatic petrol engine of this size, acceptable for mixed driving but not class-leading.
Pros and Cons:
Pros:
- • Retractable hardtop offers security and refinement over a soft-top
- • Stylish design for a coupe-cabriolet of its era
- • Diverse engine lineup caters to various needs and budgets
- • Generally comfortable ride quality for daily driving
- • Good value on the used market, offering affordable open-top motoring
Cons:
- • Limited rear seat space and boot access with the roof down
- • Heavier than the standard Astra, impacting performance and economy on lower trims
- • Some entry-level engines can feel underpowered for the car's weight
- • Potential for roof mechanism issues or leaks with age if not maintained
- • Interior plastics and design can feel dated compared to newer rivals
Specifications:
Specifications are compared to those of the previous generation(G Coupe: May, 2000 - August, 2005).
| General: | |
|---|---|
| Brand: | Opel |
| Model: | Astra |
| Generation: | H TwinTop |
| Modification (Engine): | 1.8i 16V ECOTEC (140 Hp) Automatic |
| Start of production: | May, 2006 |
| End of production: | June, 2010 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Coupe - Cabriolet |
| Seats: | 4 |
| Doors: | 2 |
| Engine: | |
|---|---|
| Power: | 140 Hp @ 6300 rpm. Same horsepower |
| Power per litre: | 78 Hp/l [209mm more] |
| Torque: | 175 Nm @ 3800 rpm. |
| Engine Model/Code: | Z18XER More details about the engine Z18XER |
| Engine displacement: | 1796 |
| Number of cylinders: | 4 |
| Engine configuration: | Inline |
| Number of valves per cylinder: | 4 |
| Fuel injection system: | Multi-port manifold injection |
| Engine aspiration: | Naturally aspirated engine |
| Valvetrain: | DOHC |
| Engine oil capacity: | 4.25 l |
| Coolant: | 6.1 l |
| Engine layout: | Front, Transverse |
| Cylinder Bore: | 80.5 mm mm |
| Piston Stroke: | 88.2 mm mm |
| Compression ratio: | 10.5:1 |
| Performance: | |
|---|---|
| Fuel Type: | Petrol (Gasoline) |
| Fuel consumption (economy) - urban: | 10.7 l/100 km |
| Fuel consumption (economy) - extra urban: | 6.4 l/100 km |
| Fuel consumption (economy) - combined: | 8 l/100 km |
| Emission standard: | Euro 4 |
| Acceleration 0 - 100 km/h: | 12.7 sec |
| Acceleration 0 - 62 mph: | 12.7 sec |
| Maximum speed: | 189 km/h |
| Weight-to-power ratio: | 10 kg/Hp, 100 Hp/tonne |
| Weight-to-torque ratio: | 8 kg/Nm, 125 Nm/tonne |
| Acceleration 0 - 60 mph: | 12.1 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1400 |
| Max. weight: | 1870 |
| Max load: | 470 |
| Trunk (boot) space - maximum: | 440 l |
| Trunk (boot) space - minimum: | 205 l |
| Fuel tank capacity: | 52 l |
| Size: | |
|---|---|
| Length: | 4476 mm mm [209mm more] |
| Width: | 1759 mm mm [50mm more] |
| Height: | 1411 mm mm [21mm more] |
| Wheelbase: | 2614 mm mm [8mm more] |
| Width with mirrors folded: | 1831 mm |
| Width including mirrors: | 2021 mm |
| Front track: | 1488 mm |
| Rear (Back) track: | 1481 mm |
| Front overhang: | 909 mm |
| Rear overhang: | 953 mm |
| Ride height (ground clearance): | 122 mm |
| Minimum turning circle (turning diameter): | 11.2 m [above average] |
| Powertrain: | |
|---|---|
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears | 4 |
| Transmission type | Automatic |
| Front brakes | Ventilated discs [Best for performance and cooling.] |
| Rear brakes | Disc [above average] |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 205/55 R16 |
| Wheel rims size | 16 |
| Front suspension | Coil spring |
| Rear suspension | Transverse stabilizer |
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