2004 GMC Sierra vs. 2003 Opel Astra
To start off, 2004 GMC Sierra is newer by 1 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 5,965 cc (8 cylinders), 2004 GMC Sierra is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (300 HP) has 177 more horse power than 2003 Opel Astra. (123 HP). In normal driving conditions, 2004 GMC Sierra should accelerate faster than 2003 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 972 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.
Let's talk about torque, 2004 GMC Sierra (488 Nm) has 317 more torque (in Nm) than 2003 Opel Astra. (171 Nm). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Astra. 2003 Opel Astra has automatic transmission and 2004 GMC Sierra has manual transmission. 2004 GMC Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Astra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 GMC Sierra | 2003 Opel Astra | |
| Make | GMC | Opel |
| Model | Sierra | Astra |
| Year Released | 2004 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 1796 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 300 HP | 123 HP |
| Torque | 488 Nm | 171 Nm |
| Engine Bore Size | 102.1 mm | 80.5 mm |
| Engine Stroke Size | 92 mm | 88.2 mm |
| Transmission Type | Manual | Automatic |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 2282 kg | 1310 kg |
| Vehicle Length | 5650 mm | 4260 mm |
| Vehicle Width | 2000 mm | 1760 mm |
| Vehicle Height | 1890 mm | 1470 mm |
| Wheelbase Size | 3380 mm | 2700 mm |
| Fuel Tank Capacity | 129 L | 52 L |
