2009 Audi A4 vs. 2008 Mercedes-Benz R
To start off, 2009 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Mercedes-Benz R. In addition, the cost of maintenance, including insurance, on 2008 Mercedes-Benz R would be higher. At 2,987 cc (6 cylinders), 2008 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2008 Mercedes-Benz R (221 HP @ 3800 RPM) has 21 more horse power than 2009 Audi A4. (200 HP @ 5100 RPM) In normal driving conditions, 2008 Mercedes-Benz R should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz R weights approximately 1365 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.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear 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, 2008 Mercedes-Benz R (510 Nm @ 1600 RPM) has 229 more torque (in Nm) than 2009 Audi A4. (281 Nm @ 1800 RPM). This means 2008 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 | 2008 Mercedes-Benz R | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | R |
| Year Released | 2009 | 2008 |
| Body Type | Convertible | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1983 cc | 2987 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 200 HP | 221 HP |
| Engine RPM | 5100 RPM | 3800 RPM |
| Torque | 281 Nm | 510 Nm |
| Torque RPM | 1800 RPM | 1600 RPM |
| Engine Bore Size | 82.5 mm | 83 mm |
| Engine Stroke Size | 92.8 mm | 92 mm |
| Engine Compression Ratio | 10.5:1 | 17.7:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 6 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 930 kg | 2295 kg |
| Vehicle Length | 4580 mm | 5180 mm |
| Vehicle Width | 1780 mm | 1930 mm |
| Vehicle Height | 1400 mm | 1670 mm |
| Wheelbase Size | 2660 mm | 3220 mm |
| Fuel Consumption City | 11.2 L/100km | 11.2 L/100km |
| Fuel Consumption Overall | 10.2 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 34 L | 80 L |
