2003 Mazda Roadster vs. 2006 Opel Vectra
To start off, 2006 Opel Vectra is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Mazda Roadster. In addition, the cost of maintenance, including insurance, on 2003 Mazda Roadster would be higher. At 1,997 cc (4 cylinders), 2006 Opel Vectra is equipped with a bigger engine. In terms of performance, 2006 Opel Vectra (173 HP @ 5500 RPM) has 16 more horse power than 2003 Mazda Roadster. (157 HP @ 7000 RPM) In normal driving conditions, 2006 Opel Vectra should accelerate faster than 2003 Mazda Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Vectra weights approximately 525 kg more than 2003 Mazda Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Mazda Roadster 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 Mazda Roadster. However, in wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Opel Vectra (265 Nm @ 2500 RPM) has 95 more torque (in Nm) than 2003 Mazda Roadster. (170 Nm @ 5500 RPM). This means 2006 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster.
Compare all specifications:
| 2003 Mazda Roadster | 2006 Opel Vectra | |
| Make | Mazda | Opel |
| Model | Roadster | Vectra |
| Year Released | 2003 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 1839 cc | 1997 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 157 HP | 173 HP |
| Engine RPM | 7000 RPM | 5500 RPM |
| Torque | 170 Nm | 265 Nm |
| Torque RPM | 5500 RPM | 2500 RPM |
| Engine Bore Size | 83 mm | 86 mm |
| Engine Stroke Size | 85 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 9.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1060 kg | 1585 kg |
| Vehicle Length | 3960 mm | 4830 mm |
| Vehicle Width | 1690 mm | 1800 mm |
| Vehicle Height | 1240 mm | 1510 mm |
| Wheelbase Size | 2370 mm | 2840 mm |
| Fuel Tank Capacity | 48 L | 60 L |
