2004 BMW 645 vs. 2004 Hummer H2
To start off, both 2004 BMW 645 and 2004 Hummer H2 were released in the same year (2004). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,963 cc (8 cylinders), 2004 Hummer H2 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (322 HP) has 6 more horse power than 2004 Hummer H2. (316 HP). In normal driving conditions, 2004 BMW 645 should accelerate faster than 2004 Hummer H2. With that said, vehicle weight also plays an important factor in acceleration. 2004 Hummer H2 weights approximately 1188 kg more than 2004 BMW 645.
Because 2004 Hummer H2 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 645. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Hummer H2 (488 Nm) has 41 more torque (in Nm) than 2004 BMW 645. (447 Nm). This means 2004 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 645.
Compare all specifications:
| 2004 BMW 645 | 2004 Hummer H2 | |
| Make | BMW | Hummer |
| Model | 645 | H2 |
| Year Released | 2004 | 2004 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 5963 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 322 HP | 316 HP |
| Torque | 447 Nm | 488 Nm |
| Engine Bore Size | 92 mm | 102 mm |
| Engine Stroke Size | 83 mm | 92 mm |
| Engine Compression Ratio | 10.5:1 | 9.4:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1715 kg | 2903 kg |
| Vehicle Length | 4840 mm | 4830 mm |
| Vehicle Width | 1860 mm | 2070 mm |
| Vehicle Height | 1380 mm | 2020 mm |
| Wheelbase Size | 2790 mm | 3130 mm |
| Fuel Tank Capacity | 70 L | 121 L |
