2003 Alfa Romeo Spider vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo Spider would be higher. At 1,998 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (197 HP @ 5600 RPM) has 49 more horse power than 2003 Alfa Romeo Spider. (148 HP @ 6300 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2003 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alfa Romeo Spider weights approximately 45 kg more than 2007 Opel Astra.
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, 2007 Opel Astra (262 Nm @ 4200 RPM) has 81 more torque (in Nm) than 2003 Alfa Romeo Spider. (181 Nm @ 3800 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo Spider.
Compare all specifications:
| 2003 Alfa Romeo Spider | 2007 Opel Astra | |
| Make | Alfa Romeo | Opel |
| Model | Spider | Astra |
| Year Released | 2003 | 2007 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1908 cc | 1998 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 197 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 181 Nm | 262 Nm |
| Torque RPM | 3800 RPM | 4200 RPM |
| Engine Bore Size | 83 mm | 86 mm |
| Engine Stroke Size | 91 mm | 86 mm |
| Engine Compression Ratio | 18.5:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 8.4 seconds | 8.2 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1385 kg |
| Vehicle Length | 4180 mm | 4260 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1320 mm | 1470 mm |
| Wheelbase Size | 2600 mm | 2620 mm |
| Fuel Consumption Overall | 9.2 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 69 L | 52 L |
