2003 BMW 645 vs. 2007 Hummer H3
To start off, 2007 Hummer H3 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW 645. In addition, the cost of maintenance, including insurance, on 2003 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (325 HP @ 6100 RPM) has 83 more horse power than 2007 Hummer H3. (242 HP @ 5600 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 2007 Hummer H3.
Because 2007 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 645. In wet, icy, snow, or gravel driving conditions, 2007 Hummer H3 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, 2003 BMW 645 (450 Nm @ 3600 RPM) has 122 more torque (in Nm) than 2007 Hummer H3. (328 Nm @ 4600 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2007 Hummer H3.
Compare all specifications:
2003 BMW 645 | 2007 Hummer H3 | |
Make | BMW | Hummer |
Model | 645 | H3 |
Year Released | 2003 | 2007 |
Body Type | Coupe | SUV |
Engine Position | Front | Front |
Engine Size | 4398 cc | 3699 cc |
Engine Cylinders | 8 cylinders | 5 cylinders |
Engine Type | V | in-line |
Horse Power | 325 HP | 242 HP |
Engine RPM | 6100 RPM | 5600 RPM |
Torque | 450 Nm | 328 Nm |
Torque RPM | 3600 RPM | 4600 RPM |
Engine Bore Size | 92 mm | 95.5 mm |
Engine Stroke Size | 82.7 mm | 101.6 mm |
Engine Compression Ratio | 10.5:1 | 10.0:1 |
Drive Type | Rear | 4WD |
Transmission Type | Manual | Manual |
Number of Seats | 4 seats | 5 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Length | 4830 mm | 4750 mm |
Vehicle Width | 1860 mm | 2180 mm |
Vehicle Height | 1380 mm | 1900 mm |
Wheelbase Size | 2890 mm | 2850 mm |