2003 Opel Astra 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 Opel Astra. In addition, the cost of maintenance, including insurance, on 2003 Opel Astra would be higher. At 3,490 cc (6 cylinders), 2005 Saturn Relay is equipped with a bigger engine. In terms of performance, 2005 Saturn Relay (200 HP) has 118 more horse power than 2003 Opel Astra. (82 HP) In normal driving conditions, 2005 Saturn Relay should accelerate faster than 2003 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Saturn Relay weights approximately 561 kg more than 2003 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2005 Saturn Relay (298 Nm) has 113 more torque (in Nm) than 2003 Opel Astra. (185 Nm). This means 2005 Saturn Relay will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Astra.
Compare all specifications:
| 2003 Opel Astra | 2005 Saturn Relay | |
| Make | Opel | Saturn |
| Model | Astra | Relay |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 3490 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 82 HP | 200 HP |
| Torque | 185 Nm | 298 Nm |
| Engine Bore Size | 84 mm | 94 mm |
| Engine Stroke Size | 90 mm | 84 mm |
| Engine Compression Ratio | 18.5:1 | 9.8:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 7 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1385 kg | 1946 kg |
| Vehicle Length | 4260 mm | 5210 mm |
| Vehicle Width | 1700 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1840 mm |
| Wheelbase Size | 2620 mm | 3080 mm |
| Fuel Tank Capacity | 52 L | 95 L |
