2007 BMW 523 vs. 2009 Mercedes-Benz C
To start off, 2009 Mercedes-Benz C is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 523. In addition, the cost of maintenance, including insurance, on 2007 BMW 523 would be higher. At 2,497 cc (6 cylinders), 2007 BMW 523 is equipped with a bigger engine. In terms of performance, 2007 BMW 523 (175 HP @ 5800 RPM) has 7 more horse power than 2009 Mercedes-Benz C. (168 HP @ 3800 RPM). In normal driving conditions, 2007 BMW 523 should accelerate faster than 2009 Mercedes-Benz C. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz C weights approximately 1330 kg more than 2007 BMW 523.
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 C (400 Nm @ 2000 RPM) has 170 more torque (in Nm) than 2007 BMW 523. (230 Nm @ 3500 RPM). This means 2009 Mercedes-Benz C will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 523.
Compare all specifications:
| 2007 BMW 523 | 2009 Mercedes-Benz C | |
| Make | BMW | Mercedes-Benz |
| Model | 523 | C |
| Year Released | 2007 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2146 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 168 HP |
| Engine RPM | 5800 RPM | 3800 RPM |
| Torque | 230 Nm | 400 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Engine Bore Size | 82 mm | 88 mm |
| Engine Stroke Size | 78.8 mm | 88.3 mm |
| Engine Compression Ratio | 11.0:1 | 17.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1500 kg | 2830 kg |
| Vehicle Length | 4850 mm | 4590 mm |
| Vehicle Width | 1470 mm | 1450 mm |
| Vehicle Height | 1850 mm | 1780 mm |
| Wheelbase Size | 2890 mm | 2770 mm |
| Fuel Consumption Overall | 9.5 L/100km | 9.9 L/100km |
| Fuel Tank Capacity | 70 L | 62 L |
