2009 Mercedes-Benz SL vs. 2010 BMW 123
To start off, 2010 BMW 123 is newer by 1 year(s). Which means there will be less support and parts availability for 2009 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 2009 Mercedes-Benz SL would be higher. At 5,512 cc (12 cylinders), 2009 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SL (510 HP @ 5000 RPM) has 308 more horse power than 2010 BMW 123. (202 HP @ 4400 RPM). In normal driving conditions, 2009 Mercedes-Benz SL should accelerate faster than 2010 BMW 123. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz SL weights approximately 455 kg more than 2010 BMW 123. 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, 2009 Mercedes-Benz SL (830 Nm @ 1900 RPM) has 430 more torque (in Nm) than 2010 BMW 123. (400 Nm @ 2000 RPM). This means 2009 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2010 BMW 123.
Compare all specifications:
| 2009 Mercedes-Benz SL | 2010 BMW 123 | |
| Make | Mercedes-Benz | BMW |
| Model | SL | 123 |
| Year Released | 2009 | 2010 |
| Engine Position | Front | Front |
| Engine Size | 5512 cc | 1995 cc |
| Engine Cylinders | 12 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 510 HP | 202 HP |
| Engine RPM | 5000 RPM | 4400 RPM |
| Torque | 830 Nm | 400 Nm |
| Torque RPM | 1900 RPM | 2000 RPM |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 4.8 seconds | 7 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1950 kg | 1495 kg |
| Vehicle Length | 4540 mm | 4360 mm |
| Vehicle Width | 1820 mm | 1748 mm |
| Vehicle Height | 1300 mm | 1423 mm |
| Wheelbase Size | 2570 mm | 2660 mm |
| Fuel Consumption Highway | 13.1 L/100km | 4.3 L/100km |
| Fuel Consumption City | 21.4 L/100km | 6.4 L/100km |
| Fuel Consumption Overall | 16.8 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 80 L | 51 L |
