2004 GMC Sierra vs. 1991 Opel Astra
To start off, 2004 GMC Sierra is newer by 13 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 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 200 more horse power than 1991 Opel Astra. (100 HP). In normal driving conditions, 2004 GMC Sierra should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 1187 kg more than 1991 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 353 more torque (in Nm) than 1991 Opel Astra. (135 Nm). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 2004 GMC Sierra | 1991 Opel Astra | |
| Make | GMC | Opel |
| Model | Sierra | Astra |
| Year Released | 2004 | 1991 |
| Body Type | Pickup | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 1597 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 300 HP | 100 HP |
| Torque | 488 Nm | 135 Nm |
| Engine Bore Size | 102.1 mm | 79 mm |
| Engine Stroke Size | 92 mm | 81.5 mm |
| Engine Compression Ratio | 9.4:1 | 9.8:1 |
| Transmission Type | Manual | Manual |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 2282 kg | 1095 kg |
| Vehicle Length | 5650 mm | 4280 mm |
| Vehicle Width | 2000 mm | 1690 mm |
| Vehicle Height | 1890 mm | 1430 mm |
| Wheelbase Size | 3380 mm | 2640 mm |
| Fuel Tank Capacity | 129 L | 52 L |
