2007 Audi A4 vs. 2013 Mercedes-Benz M
To start off, 2013 Mercedes-Benz M is newer by 6 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 4,600 cc (8 cylinders), 2013 Mercedes-Benz M is equipped with a bigger engine. In terms of performance, 2013 Mercedes-Benz M (397 HP @ 5000 RPM) has 259 more horse power than 2007 Audi A4. (138 HP @ 4000 RPM) In normal driving conditions, 2013 Mercedes-Benz M should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2013 Mercedes-Benz M weights approximately 1013 kg more than 2007 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Mercedes-Benz M is four wheel drive (4WD), it will have significant more traction and grip than 2007 Audi A4. In wet, icy, snow, or gravel driving conditions, 2013 Mercedes-Benz M will offer significantly more control. 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, 2013 Mercedes-Benz M (601 Nm @ 4750 RPM) has 281 more torque (in Nm) than 2007 Audi A4. (320 Nm @ 1750 RPM). This means 2013 Mercedes-Benz M will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2013 Mercedes-Benz M | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | M |
| Year Released | 2007 | 2013 |
| Body Type | Station Wagon | SUV |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 4600 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | electric |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 397 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 320 Nm | 601 Nm |
| Torque RPM | 1750 RPM | 4750 RPM |
| Engine Bore Size | 81.1 mm | 92 mm |
| Engine Stroke Size | 95.5 mm | 86 mm |
| Engine Compression Ratio | 18.0:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 9.9 seconds | 5.6 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1275 kg | 2288 kg |
| Vehicle Length | 4550 mm | 4804 mm |
| Vehicle Width | 1780 mm | 2141 mm |
| Vehicle Height | 1430 mm | 1796 mm |
| Wheelbase Size | 2660 mm | 2915 mm |
