2003 Alpina Roadster vs. 2005 Saturn Relay
To start off, 2005 Saturn Relay is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2003 Alpina Roadster would be higher. At 3,491 cc (6 cylinders), 2005 Saturn Relay is equipped with a bigger engine. In terms of performance, 2003 Alpina Roadster (301 HP) has 101 more horse power than 2005 Saturn Relay. (200 HP). In normal driving conditions, 2003 Alpina Roadster should accelerate faster than 2005 Saturn Relay. With that said, vehicle weight also plays an important factor in acceleration. 2005 Saturn Relay weights approximately 484 kg more than 2003 Alpina Roadster.
Because 2005 Saturn Relay is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2005 Saturn Relay will offer significantly more control. 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 Alpina Roadster (362 Nm) has 63 more torque (in Nm) than 2005 Saturn Relay. (299 Nm). This means 2003 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 2005 Saturn Relay.
Compare all specifications:
| 2003 Alpina Roadster | 2005 Saturn Relay | |
| Make | Alpina | Saturn |
| Model | Roadster | Relay |
| Year Released | 2003 | 2005 |
| Body Type | Convertible | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 3491 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 301 HP | 200 HP |
| Torque | 362 Nm | 299 Nm |
| Engine Bore Size | 87 mm | 94 mm |
| Engine Stroke Size | 93.8 mm | 84 mm |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 7 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1626 kg | 2110 kg |
| Vehicle Length | 4100 mm | 5210 mm |
| Vehicle Width | 1790 mm | 1840 mm |
| Vehicle Height | 1310 mm | 1840 mm |
| Wheelbase Size | 2500 mm | 3080 mm |
| Fuel Consumption Overall | 11.7 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 55 L | 95 L |
