2007 Hummer H2 vs. 2003 Opel Vectra
To start off, 2007 Hummer H2 is newer by 4 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 5,999 cc (8 cylinders), 2007 Hummer H2 is equipped with a bigger engine. In terms of performance, 2007 Hummer H2 (325 HP @ 5200 RPM) has 205 more horse power than 2003 Opel Vectra. (120 HP @ 5400 RPM). In normal driving conditions, 2007 Hummer H2 should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2007 Hummer H2 weights approximately 1433 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 2007 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, 2007 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, 2007 Hummer H2 (495 Nm @ 4000 RPM) has 328 more torque (in Nm) than 2003 Opel Vectra. (167 Nm @ 3800 RPM). This means 2007 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra.
Compare all specifications:
| 2007 Hummer H2 | 2003 Opel Vectra | |
| Make | Hummer | Opel |
| Model | H2 | Vectra |
| Year Released | 2007 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 1794 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 325 HP | 120 HP |
| Engine RPM | 5200 RPM | 5400 RPM |
| Torque | 495 Nm | 167 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Engine Bore Size | 101.6 mm | 80.5 mm |
| Engine Stroke Size | 91.9 mm | 88.2 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 2903 kg | 1470 kg |
| Vehicle Length | 5180 mm | 4830 mm |
| Vehicle Width | 2070 mm | 1800 mm |
| Vehicle Height | 2020 mm | 1510 mm |
