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Opel Astra H GTC 1.8i (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 GTC Overview:
Opel Astra (H GTC). With 175 Nm of torque, it offers ample pulling power. It has moderate fuel consumption (~10.4 l/100km). Weighing only 1210 kg, it’s quite light. Front‑wheel drive delivers efficiency and easy handling. Acceleration is relatively slow (0–100 km/h in 11.2 s). The top speed reaches 190 km/h. A compact car with a rear door that swings upward to provide access to the cargo area. Seating for 5 makes it ideal for daily use.
1.8i (140 Hp) Automatic Verdict:
Performance Verdict
Improved power over the 1.6 auto, but the automatic gearbox still limits its full potential.
Fuel Economy
Moderate fuel consumption, similar to the 125hp manual but less efficient due to the automatic.
Pros and Cons:
Pros:
- • Sporty and attractive styling, especially the GTC variant
- • Wide range of engines, from economical diesels to high-performance OPC
- • Good handling and engaging driving dynamics for a C-segment car
- • Practical hatchback space with a decent boot
- • Strong Euro NCAP safety rating for its era
Cons:
- • Some entry-level engines can feel underpowered
- • Interior plastics can feel dated compared to rivals
- • Ride can be firm on sportier trims and larger wheels
- • Known for some common electrical gremlins (e.g., CIM module)
- • Automatic transmissions can be sluggish and less efficient
Specifications:
Specifications are compared to those of the previous generation(G Caravan (facelift 2002): November, 2002 - May, 2004).
| General: | |
|---|---|
| Brand: | Opel |
| Model: | Astra |
| Generation: | H GTC |
| Modification (Engine): | 1.8i (140 Hp) Automatic |
| Start of production: | November, 2005 |
| End of production: | 2006 |
| Powertrain Architecture: | Internal Combustion engine |
| Body type: | Hatchback |
| Seats: | 5 |
| Doors: | 3 |
| Engine: | |
|---|---|
| Power: | 140 Hp @ 6300 rpm. Same horsepower |
| Power per litre: | 78 Hp/l [2mm 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: | 10.4 l/100 km |
| Fuel consumption (economy) - extra urban: | 6.1 l/100 km |
| Fuel consumption (economy) - combined: | 7.7 l/100 km |
| Emission standard: | Euro 4 |
| Acceleration 0 - 100 km/h: | 11.2 sec |
| Acceleration 0 - 62 mph: | 11.2 sec |
| Maximum speed: | 190 km/h |
| Weight-to-power ratio: | 8.6 kg/Hp, 115.7 Hp/tonne |
| Weight-to-torque ratio: | 6.9 kg/Nm, 144.6 Nm/tonne |
| Acceleration 0 - 60 mph: | 10.6 sec |
| Space: | |
|---|---|
| Kerb Weight: | 1210 |
| Max. weight: | 1785 |
| Max load: | 575 |
| Trunk (boot) space - maximum: | 1070 l |
| Trunk (boot) space - minimum: | 340 l |
| Fuel tank capacity: | 52 l |
| Size: | |
|---|---|
| Length: | 4290 mm mm [2mm more] |
| Width: | 1753 mm mm [43mm more] |
| Height: | 1415 mm mm [95mm less] |
| Wheelbase: | 2614 mm mm [3mm more] |
| Width including mirrors: | 2033 mm |
| Front track: | 1488 mm |
| Rear (Back) track: | 1488 mm |
| Front overhang: | 910 mm |
| Rear overhang: | 766 mm |
| Ride height (ground clearance): | 140 mm |
| 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 |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 205/55 R16 |
| Wheel rims size | 6.5J x 16 |
| Front suspension | Spring Strut |
| Rear suspension | Spring Strut |
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