2006 BMW 645 vs. 2002 Mercedes-Benz S
To start off, 2006 BMW 645 is newer by 4 year(s). Which means there will be less support and parts availability for 2002 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2002 Mercedes-Benz S 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 87 more horse power than 2002 Mercedes-Benz S. (241 HP @ 5700 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2002 Mercedes-Benz S. With that said, vehicle weight also plays an important factor in acceleration. 2002 Mercedes-Benz S weights approximately 140 kg more than 2006 BMW 645.
Because 2002 Mercedes-Benz S is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 645. In wet, icy, snow, or gravel driving conditions, 2002 Mercedes-Benz S will offer significantly more control. 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 100 more torque (in Nm) than 2002 Mercedes-Benz S. (350 Nm @ 3000 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2002 Mercedes-Benz S.
Compare all specifications:
| 2006 BMW 645 | 2002 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | 645 | S |
| Year Released | 2006 | 2002 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3724 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 328 HP | 241 HP |
| Engine RPM | 6100 RPM | 5700 RPM |
| Torque | 450 Nm | 350 Nm |
| Torque RPM | 3600 RPM | 3000 RPM |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Top Speed | 250 km/hour | 241 km/hour |
| Acceleration 0-100mph | 5.6 seconds | 7.9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1810 kg | 1950 kg |
| Vehicle Length | 4830 mm | 5170 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1380 mm | 1460 mm |
| Wheelbase Size | 2790 mm | 2970 mm |
| Fuel Tank Capacity | 70 L | 88 L |
