2005 Hummer H2 vs. 2003 Opel Vectra
To start off, 2005 Hummer H2 is newer by 2 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), 2005 Hummer H2 is equipped with a bigger engine. In terms of performance, 2005 Hummer H2 (325 HP) has 202 more horse power than 2003 Opel Vectra. (123 HP). In normal driving conditions, 2005 Hummer H2 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Hummer H2 weights approximately 1271 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.
Because 2005 Hummer H2 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2005 Hummer H2 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, 2005 Hummer H2 (495 Nm) has 215 more torque (in Nm) than 2003 Opel Vectra. (280 Nm). This means 2005 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 2005 Hummer H2 | 2003 Opel Vectra | |
| Make | Hummer | Opel |
| Model | H2 | Vectra |
| Year Released | 2005 | 2003 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 2171 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 325 HP | 123 HP |
| Torque | 495 Nm | 280 Nm |
| Engine Bore Size | 102 mm | 84 mm |
| Engine Stroke Size | 92 mm | 98 mm |
| Engine Compression Ratio | 9.4:1 | 18.5:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2904 kg | 1633 kg |
| Vehicle Length | 5180 mm | 4830 mm |
| Vehicle Width | 2070 mm | 1800 mm |
| Vehicle Height | 2020 mm | 1470 mm |
| Wheelbase Size | 3120 mm | 2610 mm |
| Fuel Tank Capacity | 121 L | 60 L |
