2009 BMW 525 vs. 2004 Mercedes-Benz SL
To start off, 2009 BMW 525 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2004 Mercedes-Benz SL would be higher. At 5,495 cc (6 cylinders), 2009 BMW 525 is equipped with a bigger engine. In terms of performance, 2004 Mercedes-Benz SL (493 HP @ 6100 RPM) has 278 more horse power than 2009 BMW 525. (215 HP @ 6500 RPM) In normal driving conditions, 2004 Mercedes-Benz SL should accelerate faster than 2009 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2004 Mercedes-Benz SL weights approximately 455 kg more than 2009 BMW 525. 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, 2004 Mercedes-Benz SL (700 Nm @ 2750 RPM) has 450 more torque (in Nm) than 2009 BMW 525. (250 Nm @ 2900 RPM). This means 2004 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 525.
Compare all specifications:
| 2009 BMW 525 | 2004 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | 525 | SL |
| Year Released | 2009 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5495 cc | 5439 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 215 HP | 493 HP |
| Engine RPM | 6500 RPM | 6100 RPM |
| Torque | 250 Nm | 700 Nm |
| Torque RPM | 2900 RPM | 2750 RPM |
| Engine Compression Ratio | 11.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 7.9 seconds | 4.7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1525 kg | 1980 kg |
| Vehicle Length | 4850 mm | 4540 mm |
| Vehicle Width | 1470 mm | 1830 mm |
| Vehicle Height | 1850 mm | 1300 mm |
| Wheelbase Size | 2890 mm | 2570 mm |
| Fuel Consumption Overall | 7 L/100km | 13.5 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
