2003 BMW 645 vs. 2007 BMW M5
To start off, 2007 BMW M5 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 4,998 cc (10 cylinders), 2007 BMW M5 is equipped with a bigger engine. In terms of performance, 2007 BMW M5 (500 HP @ 7750 RPM) has 190 more horse power than 2003 BMW 645. (310 HP @ 6000 RPM) In normal driving conditions, 2007 BMW M5 should accelerate faster than 2003 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M5 weights approximately 132 kg more than 2003 BMW 645. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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 BMW M5 (520 Nm @ 6100 RPM) has 70 more torque (in Nm) than 2003 BMW 645. (450 Nm @ 3600 RPM). This means 2007 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 645.
Compare all specifications:
2003 BMW 645 | 2007 BMW M5 | |
Make | BMW | BMW |
Model | 645 | M5 |
Year Released | 2003 | 2007 |
Body Type | Coupe | Sedan |
Engine Position | Front | Front |
Engine Size | 4398 cc | 4998 cc |
Engine Cylinders | 8 cylinders | 10 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 310 HP | 500 HP |
Engine RPM | 6000 RPM | 7750 RPM |
Torque | 450 Nm | 520 Nm |
Torque RPM | 3600 RPM | 6100 RPM |
Engine Bore Size | 92 mm | 92 mm |
Engine Stroke Size | 82.7 mm | 75.2 mm |
Engine Compression Ratio | 10.5:1 | 12.0:1 |
Top Speed | 250 km/hour | 250 km/hour |
Acceleration 0-100mph | 5.9 seconds | 4.7 seconds |
Drive Type | Rear | Rear |
Transmission Type | Automatic | Automatic |
Number of Seats | 4 seats | 5 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Weight | 1698 kg | 1830 kg |
Vehicle Length | 4830 mm | 4860 mm |
Vehicle Width | 1860 mm | 1850 mm |
Vehicle Height | 1380 mm | 1480 mm |
Wheelbase Size | 2790 mm | 2900 mm |
Fuel Consumption Overall | 10.9 L/100km | 14.8 L/100km |
Fuel Tank Capacity | 70 L | 70 L |