2009 BMW 125 vs. 2005 Mercedes-Benz SL
To start off, 2009 BMW 125 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz SL would be higher. At 5,980 cc (12 cylinders), 2005 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz SL (604 HP @ 4200 RPM) has 389 more horse power than 2009 BMW 125. (215 HP @ 6700 RPM) In normal driving conditions, 2005 Mercedes-Benz SL should accelerate faster than 2009 BMW 125. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz SL weights approximately 535 kg more than 2009 BMW 125. 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, 2005 Mercedes-Benz SL (1,001 Nm) has 730 more torque (in Nm) than 2009 BMW 125. (271 Nm). This means 2005 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 125.
Compare all specifications:
| 2009 BMW 125 | 2005 Mercedes-Benz SL | |
| Make | BMW | Mercedes-Benz |
| Model | 125 | SL |
| Year Released | 2009 | 2005 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 5980 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 215 HP | 604 HP |
| Engine RPM | 6700 RPM | 4200 RPM |
| Torque | 271 Nm | 1001 Nm |
| Engine Bore Size | 85 mm | 83 mm |
| Engine Stroke Size | 88 mm | 93 mm |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1525 kg | 2060 kg |
| Vehicle Length | 4370 mm | 4540 mm |
| Vehicle Width | 1420 mm | 1820 mm |
| Vehicle Height | 1760 mm | 1300 mm |
| Wheelbase Size | 2670 mm | 2570 mm |
| Fuel Consumption Overall | 8.1 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 53 L | 80 L |
