2009 Mercedes-Benz C vs. 2005 BMW 645
To start off, 2009 Mercedes-Benz C is newer by 4 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 4,392 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (326 HP @ 6100 RPM) has 145 more horse power than 2009 Mercedes-Benz C. (181 HP @ 5500 RPM) In normal driving conditions, 2005 BMW 645 should accelerate faster than 2009 Mercedes-Benz C. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz C weights approximately 935 kg more than 2005 BMW 645.
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 (447 Nm @ 3600 RPM) has 207 more torque (in Nm) than 2009 Mercedes-Benz C. (240 Nm @ 2800 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercedes-Benz C.
Compare all specifications:
| 2009 Mercedes-Benz C | 2005 BMW 645 | |
| Make | Mercedes-Benz | BMW |
| Model | C | 645 |
| Year Released | 2009 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 4392 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 181 HP | 326 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 240 Nm | 447 Nm |
| Torque RPM | 2800 RPM | 3600 RPM |
| Engine Compression Ratio | 8.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2830 kg | 1895 kg |
| Vehicle Length | 4590 mm | 4830 mm |
| Vehicle Width | 1450 mm | 1860 mm |
| Vehicle Height | 1780 mm | 1380 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
| Fuel Consumption Overall | 9.9 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 62 L | 70 L |
