2009 Audi A4 vs. 2007 Mercedes-Benz R
To start off, 2009 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Mercedes-Benz R. In addition, the cost of maintenance, including insurance, on 2007 Mercedes-Benz R would be higher. At 6,208 cc (8 cylinders), 2007 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz R (503 HP @ 6800 RPM) has 303 more horse power than 2009 Audi A4. (200 HP @ 5100 RPM) In normal driving conditions, 2007 Mercedes-Benz R should accelerate faster than 2009 Audi A4.
Because 2007 Mercedes-Benz R is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A4. In wet, icy, snow, or gravel driving conditions, 2007 Mercedes-Benz R 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, 2007 Mercedes-Benz R (632 Nm @ 5000 RPM) has 351 more torque (in Nm) than 2009 Audi A4. (281 Nm @ 1800 RPM). This means 2007 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Audi A4 | 2007 Mercedes-Benz R | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | R |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 6208 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 200 HP | 503 HP |
| Engine RPM | 5100 RPM | 6800 RPM |
| Torque | 281 Nm | 632 Nm |
| Torque RPM | 1800 RPM | 5000 RPM |
| Engine Bore Size | 82.5 mm | 102.2 mm |
| Engine Stroke Size | 92.8 mm | 94.6 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | 4WD |
| Number of Seats | 4 seats | 6 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Length | 4580 mm | 5160 mm |
| Vehicle Width | 1780 mm | 1930 mm |
| Vehicle Height | 1400 mm | 1670 mm |
| Wheelbase Size | 2660 mm | 3220 mm |
| Fuel Consumption | 7.8 L/100km | 14.7 L/100km |
| Fuel Consumption City | 10.2 L/100km | 19.6 L/100km |
| Fuel Consumption Overall | 9.4 L/100km | 18.1 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
