2003 Opel Speedster vs. 2007 Opel Vectra
To start off, 2007 Opel Vectra is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Opel Speedster. In addition, the cost of maintenance, including insurance, on 2003 Opel Speedster would be higher. At 2,198 cc (4 cylinders), 2007 Opel Vectra is equipped with a bigger engine. In terms of performance, 2003 Opel Speedster (197 HP @ 5500 RPM) has 44 more horse power than 2007 Opel Vectra. (153 HP @ 5600 RPM). In normal driving conditions, 2003 Opel Speedster should accelerate faster than 2007 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Vectra weights approximately 450 kg more than 2003 Opel Speedster.
Because 2003 Opel Speedster is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 Opel Speedster. However, in wet, icy, snow, or gravel driving conditions, 2007 Opel Vectra, being front wheel drive (FWD), will offer much better control with better grip. 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, 2003 Opel Speedster (250 Nm @ 1950 RPM) has 30 more torque (in Nm) than 2007 Opel Vectra. (220 Nm @ 3800 RPM). This means 2003 Opel Speedster will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Vectra. 2007 Opel Vectra has automatic transmission and 2003 Opel Speedster has manual transmission. 2003 Opel Speedster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Opel Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Opel Speedster | 2007 Opel Vectra | |
| Make | Opel | Opel |
| Model | Speedster | Vectra |
| Year Released | 2003 | 2007 |
| Body Type | Convertible | Sedan |
| Engine Position | Middle | Front |
| Engine Size | 1993 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 197 HP | 153 HP |
| Engine RPM | 5500 RPM | 5600 RPM |
| Torque | 250 Nm | 220 Nm |
| Torque RPM | 1950 RPM | 3800 RPM |
| Engine Bore Size | 86 mm | 86 mm |
| Engine Stroke Size | 86 mm | 94.6 mm |
| Engine Compression Ratio | 8.8:1 | 12.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 243 km/hour | 218 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 9.9 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1005 kg | 1455 kg |
| Vehicle Length | 3790 mm | 4600 mm |
| Vehicle Width | 1710 mm | 1800 mm |
| Vehicle Height | 1120 mm | 1470 mm |
| Wheelbase Size | 2400 mm | 2710 mm |
| Fuel Consumption Overall | 8.5 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 36 L | 61 L |
