2006 BMW 645 vs. 2011 Mercedes-Benz A
To start off, 2011 Mercedes-Benz A is newer by 5 year(s). Which means there will be less support and parts availability for 2006 BMW 645. In addition, the cost of maintenance, including insurance, on 2006 BMW 645 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 247 more horse power than 2011 Mercedes-Benz A. (81 HP @ 4200 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2011 Mercedes-Benz A. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 366 kg more than 2011 Mercedes-Benz A. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 645 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2006 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2011 Mercedes-Benz A, being front wheel drive (FWD), will offer much better control with better grip. 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 270 more torque (in Nm) than 2011 Mercedes-Benz A. (180 Nm @ 1400 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2011 Mercedes-Benz A.
Compare all specifications:
| 2006 BMW 645 | 2011 Mercedes-Benz A | |
| Make | BMW | Mercedes-Benz |
| Model | 645 | A |
| Year Released | 2006 | 2011 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 1991 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 81 HP |
| Engine RPM | 6100 RPM | 4200 RPM |
| Torque | 450 Nm | 180 Nm |
| Torque RPM | 3600 RPM | 1400 RPM |
| Engine Bore Size | 92 mm | 83 mm |
| Engine Stroke Size | 82.7 mm | 92 mm |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 170 km/hour |
| Acceleration 0-100mph | 5.6 seconds | 15 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1692 kg | 1326 kg |
| Vehicle Length | 4830 mm | 3840 mm |
| Vehicle Width | 1860 mm | 1770 mm |
| Vehicle Height | 1380 mm | 1600 mm |
| Wheelbase Size | 2790 mm | 2570 mm |
| Fuel Consumption Overall | 11.8 L/100km | 4.9 L/100km |
| Fuel Tank Capacity | 70 L | 54 L |
