2003 Alfa Romeo GT vs. 2005 Opel Astra
To start off, 2005 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo GT. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo GT would be higher. At 3,179 cc (6 cylinders), 2003 Alfa Romeo GT is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo GT (237 HP @ 6200 RPM) has 89 more horse power than 2005 Opel Astra. (148 HP @ 4000 RPM). In normal driving conditions, 2003 Alfa Romeo GT should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo GT weights approximately 210 kg more than 2005 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 Opel Astra (320 Nm @ 2000 RPM) has 31 more torque (in Nm) than 2003 Alfa Romeo GT. (289 Nm @ 4800 RPM). This means 2005 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo GT.
Compare all specifications:
| 2003 Alfa Romeo GT | 2005 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | GT | Astra |
| Year Released | 2003 | 2005 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 237 HP | 148 HP |
| Engine RPM | 6200 RPM | 4000 RPM |
| Torque | 289 Nm | 320 Nm |
| Torque RPM | 4800 RPM | 2000 RPM |
| Engine Bore Size | 93 mm | 82.1 mm |
| Engine Stroke Size | 78 mm | 90.4 mm |
| Engine Compression Ratio | 10.5:1 | 17.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1410 kg | 1200 kg |
| Vehicle Height | 340 mm | 1440 mm |
| Wheelbase Size | 2600 mm | 2400 mm |
| Fuel Consumption Overall | 7.7 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
