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 3,498 cc (6 cylinders), 2007 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz R (269 HP @ 6000 RPM) has 111 more horse power than 2009 Audi A4. (158 HP @ 4500 RPM) In normal driving conditions, 2007 Mercedes-Benz R should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz R weights approximately 1310 kg more than 2009 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 (350 Nm @ 2400 RPM) has 100 more torque (in Nm) than 2009 Audi A4. (250 Nm @ 1500 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 | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1798 cc | 3498 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 158 HP | 269 HP |
| Engine RPM | 4500 RPM | 6000 RPM |
| Torque | 250 Nm | 350 Nm |
| Torque RPM | 1500 RPM | 2400 RPM |
| Engine Bore Size | 82.5 mm | 92.9 mm |
| Engine Stroke Size | 84.1 mm | 86 mm |
| Engine Compression Ratio | 9.6:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 225 km/hour | 230 km/hour |
| Acceleration 0-100mph | 8.6 seconds | 8.4 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 895 kg | 2205 kg |
| Vehicle Length | 4710 mm | 5160 mm |
| Vehicle Width | 2010 mm | 1930 mm |
| Vehicle Height | 1430 mm | 1660 mm |
| Wheelbase Size | 2810 mm | 3220 mm |
| Fuel Consumption Overall | 7.1 L/100km | 11.5 L/100km |
| Fuel Tank Capacity | 65 L | 80 L |
