2004 GMC Sierra vs. 2003 Opel Vectra
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 Vectra. In addition, the cost of maintenance, including insurance, on 2003 Opel Vectra 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 180 more horse power than 2003 Opel Vectra. (120 HP). In normal driving conditions, 2004 GMC Sierra should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 812 kg more than 2003 Opel Vectra. 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 321 more torque (in Nm) than 2003 Opel Vectra. (167 Nm). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra. 2003 Opel Vectra 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 Vectra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 GMC Sierra | 2003 Opel Vectra | |
| Make | GMC | Opel |
| Model | Sierra | Vectra |
| Year Released | 2004 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 1794 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 300 HP | 120 HP |
| Torque | 488 Nm | 167 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 |
| Vehicle Weight | 2282 kg | 1470 kg |
| Vehicle Length | 5650 mm | 4830 mm |
| Vehicle Width | 2000 mm | 1800 mm |
| Vehicle Height | 1890 mm | 1510 mm |
