2006 BMW 645 vs. 2005 Mercedes-Benz C
To start off, 2006 BMW 645 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz C. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz C would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 187 more horse power than 2005 Mercedes-Benz C. (141 HP @ 4200 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2005 Mercedes-Benz C. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 290 kg more than 2005 Mercedes-Benz C. 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 110 more torque (in Nm) than 2005 Mercedes-Benz C. (340 Nm @ 1800 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz C. 2006 BMW 645 has automatic transmission and 2005 Mercedes-Benz C has manual transmission. 2005 Mercedes-Benz C will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW 645 | 2005 Mercedes-Benz C | |
| Make | BMW | Mercedes-Benz |
| Model | 645 | C |
| Year Released | 2006 | 2005 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2148 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 141 HP |
| Engine RPM | 6100 RPM | 4200 RPM |
| Torque | 450 Nm | 340 Nm |
| Torque RPM | 3600 RPM | 1800 RPM |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Acceleration 0-100mph | 5.6 seconds | 10.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1810 kg | 1520 kg |
| Wheelbase Size | 2790 mm | 2860 mm |
| Fuel Consumption Overall | 13.3 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 70 L | 62 L |
