2003 BMW 645 vs. 2012 BMW M3
To start off, 2012 BMW M3 is newer by 9 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, 2012 BMW M3 (414 HP @ 8300 RPM) has 104 more horse power than 2003 BMW 645. (310 HP @ 6000 RPM) In normal driving conditions, 2012 BMW M3 should accelerate faster than 2003 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 43 kg more than 2012 BMW M3.
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, 2003 BMW 645 (450 Nm @ 3600 RPM) has 50 more torque (in Nm) than 2012 BMW M3. (400 Nm @ 3900 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2012 BMW M3. 2003 BMW 645 has automatic transmission and 2012 BMW M3 has manual transmission. 2012 BMW M3 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
2003 BMW 645 | 2012 BMW M3 | |
Make | BMW | BMW |
Model | 645 | M3 |
Year Released | 2003 | 2012 |
Body Type | Coupe | Coupe |
Engine Position | Front | Front |
Engine Size | 4398 cc | 3999 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 310 HP | 414 HP |
Engine RPM | 6000 RPM | 8300 RPM |
Torque | 450 Nm | 400 Nm |
Torque RPM | 3600 RPM | 3900 RPM |
Engine Bore Size | 92 mm | 75.2 mm |
Engine Stroke Size | 82.7 mm | 92 mm |
Top Speed | 250 km/hour | 250 km/hour |
Acceleration 0-100mph | 5.9 seconds | 4.8 seconds |
Drive Type | Rear | Rear |
Transmission Type | Automatic | 6-speed manual |
Number of Seats | 4 seats | 5 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1698 kg | 1655 kg |
Vehicle Length | 4830 mm | 4615 mm |
Vehicle Width | 1860 mm | 1803 mm |
Vehicle Height | 1380 mm | 1424 mm |
Wheelbase Size | 2790 mm | 2761 mm |
Fuel Consumption | 8 L/100km | 9.3 L/100km |
Fuel Consumption City | 16.1 L/100km | 17.7 L/100km |
Fuel Consumption Overall | 10.9 L/100km | 12.4 L/100km |
Fuel Tank Capacity | 70 L | 63 L |