2003 BMW X3 vs. 2007 Hummer H2
To start off, 2007 Hummer H2 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW X3. In addition, the cost of maintenance, including insurance, on 2003 BMW X3 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 124 more horse power than 2003 BMW X3. (201 HP @ 4000 RPM) In normal driving conditions, 2007 Hummer H2 should accelerate faster than 2003 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 Hummer H2 weights approximately 973 kg more than 2003 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 (496 Nm @ 4000 RPM) has 86 more torque (in Nm) than 2003 BMW X3. (410 Nm @ 1500 RPM). This means 2007 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW X3.
Compare all specifications:
| 2003 BMW X3 | 2007 Hummer H2 | |
| Make | BMW | Hummer |
| Model | X3 | H2 |
| Year Released | 2003 | 2007 |
| Body Type | SUV | SUV |
| Engine Position | Front | Front |
| Engine Size | 2995 cc | 5999 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 201 HP | 325 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 410 Nm | 496 Nm |
| Torque RPM | 1500 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 101.6 mm |
| Engine Stroke Size | 90 mm | 91.9 mm |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1930 kg | 2903 kg |
| Vehicle Length | 4570 mm | 4830 mm |
| Vehicle Width | 1860 mm | 2070 mm |
| Vehicle Height | 1680 mm | 2020 mm |
| Wheelbase Size | 2730 mm | 3130 mm |
| Fuel Consumption Overall | 9.1 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 67 L | 121 L |
