2003 Mazda Roadster vs. 2001 Opel Signum
To start off, 2003 Mazda Roadster is newer by 2 year(s). Which means there will be less support and parts availability for 2001 Opel Signum. In addition, the cost of maintenance, including insurance, on 2001 Opel Signum would be higher. At 3,173 cc (6 cylinders), 2001 Opel Signum is equipped with a bigger engine. In terms of performance, 2001 Opel Signum (208 HP @ 6200 RPM) has 51 more horse power than 2003 Mazda Roadster. (157 HP @ 7000 RPM) In normal driving conditions, 2001 Opel Signum should accelerate faster than 2003 Mazda Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2001 Opel Signum weights approximately 550 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, 2001 Opel Signum, 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, 2001 Opel Signum (300 Nm @ 4000 RPM) has 130 more torque (in Nm) than 2003 Mazda Roadster. (170 Nm @ 5500 RPM). This means 2001 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda Roadster.
Compare all specifications:
| 2003 Mazda Roadster | 2001 Opel Signum | |
| Make | Mazda | Opel |
| Model | Roadster | Signum |
| Year Released | 2003 | 2001 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1839 cc | 3173 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 157 HP | 208 HP |
| Engine RPM | 7000 RPM | 6200 RPM |
| Torque | 170 Nm | 300 Nm |
| Torque RPM | 5500 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 87.5 mm |
| Engine Stroke Size | 85 mm | 88 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| 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 | 1610 kg |
| Vehicle Length | 3960 mm | 4640 mm |
| Vehicle Width | 1690 mm | 1800 mm |
| Vehicle Height | 1240 mm | 1470 mm |
| Wheelbase Size | 2370 mm | 2640 mm |
| Fuel Tank Capacity | 48 L | 52 L |
