2005 BMW 645 vs. 2010 BMW M3
To start off, 2010 BMW M3 is newer by 5 year(s). Which means there will be less support and parts availability for 2005 BMW 645. In addition, the cost of maintenance, including insurance, on 2005 BMW 645 would be higher. At 4,390 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2010 BMW M3 (414 HP @ 8300 RPM) has 76 more horse power than 2005 BMW 645. (338 HP @ 6100 RPM) In normal driving conditions, 2010 BMW M3 should accelerate faster than 2005 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2010 BMW M3 weights approximately 165 kg more than 2005 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, 2005 BMW 645 (439 Nm @ 3600 RPM) has 39 more torque (in Nm) than 2010 BMW M3. (400 Nm @ 3900 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2010 BMW M3.
Compare all specifications:
| 2005 BMW 645 | 2010 BMW M3 | |
| Make | BMW | BMW |
| Model | 645 | M3 |
| Year Released | 2005 | 2010 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4390 cc | 4000 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 414 HP |
| Engine RPM | 6100 RPM | 8300 RPM |
| Torque | 439 Nm | 400 Nm |
| Torque RPM | 3600 RPM | 3900 RPM |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1715 kg | 1880 kg |
| Vehicle Length | 4830 mm | 4615 mm |
| Vehicle Width | 1860 mm | 1803 mm |
| Vehicle Height | 1380 mm | 1392 mm |
| Wheelbase Size | 2790 mm | 2761 mm |
| Fuel Consumption | 9.4 L/100km | 11.8 L/100km |
| Fuel Consumption City | 13.8 L/100km | 18.1 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
