2002 Mercedes-Benz S vs. 2004 BMW 645
To start off, 2004 BMW 645 is newer by 2 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), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (328 HP @ 6100 RPM) has 53 more horse power than 2002 Mercedes-Benz S. (275 HP @ 5750 RPM) In normal driving conditions, 2004 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 205 kg more than 2004 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, 2004 BMW 645 (450 Nm @ 3600 RPM) has 49 more torque (in Nm) than 2002 Mercedes-Benz S. (401 Nm @ 3000 RPM). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2002 Mercedes-Benz S.
Compare all specifications:
| 2002 Mercedes-Benz S | 2004 BMW 645 | |
| Make | Mercedes-Benz | BMW |
| Model | S | 645 |
| Year Released | 2002 | 2004 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4266 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 275 HP | 328 HP |
| Engine RPM | 5750 RPM | 6100 RPM |
| Torque | 401 Nm | 450 Nm |
| Torque RPM | 3000 RPM | 3600 RPM |
| Engine Bore Size | 89.9 mm | 92 mm |
| Engine Stroke Size | 84 mm | 82.7 mm |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 5.6 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1895 kg | 1690 kg |
| Vehicle Length | 5170 mm | 4830 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1380 mm |
| Wheelbase Size | 3090 mm | 2830 mm |
| Fuel Tank Capacity | 88 L | 70 L |
