2009 BMW 125 vs. 2012 Mercedes-Benz S
To start off, 2012 Mercedes-Benz S is newer by 3 year(s). Which means there will be less support and parts availability for 2009 BMW 125. In addition, the cost of maintenance, including insurance, on 2009 BMW 125 would be higher. At 4,700 cc (8 cylinders), 2012 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2012 Mercedes-Benz S (429 HP @ 5250 RPM) has 214 more horse power than 2009 BMW 125. (215 HP @ 6700 RPM) In normal driving conditions, 2012 Mercedes-Benz S should accelerate faster than 2009 BMW 125. With that said, vehicle weight also plays an important factor in acceleration. 2012 Mercedes-Benz S weights approximately 625 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, 2012 Mercedes-Benz S (699 Nm @ 1800 RPM) has 429 more torque (in Nm) than 2009 BMW 125. (270 Nm @ 2500 RPM). This means 2012 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 125.
Compare all specifications:
| 2009 BMW 125 | 2012 Mercedes-Benz S | |
| Make | BMW | Mercedes-Benz |
| Model | 125 | S |
| Year Released | 2009 | 2012 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 4700 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 429 HP |
| Engine RPM | 6700 RPM | 5250 RPM |
| Torque | 270 Nm | 699 Nm |
| Torque RPM | 2500 RPM | 1800 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | 7-speed shiftable automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1525 kg | 2150 kg |
| Vehicle Length | 4370 mm | 5245 mm |
| Vehicle Width | 1420 mm | 1872 mm |
| Vehicle Height | 1760 mm | 1473 mm |
| Wheelbase Size | 2670 mm | 3165 mm |
| Fuel Tank Capacity | 53 L | 90 L |
