2004 Audi A4 vs. 2009 Mercedes-Benz R
To start off, 2009 Mercedes-Benz R is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 2,987 cc, 2009 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz R (221 HP @ 3800 RPM) has 61 more horse power than 2004 Audi A4. (160 HP @ 4000 RPM) In normal driving conditions, 2009 Mercedes-Benz R should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz R weights approximately 768 kg more than 2004 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Mercedes-Benz R is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A4. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Mercedes-Benz R (510 Nm @ 2800 RPM) has 200 more torque (in Nm) than 2004 Audi A4. (310 Nm @ 1400 RPM). This means 2009 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 2009 Mercedes-Benz R | |
| Make | Audi | Mercedes-Benz |
| Model | A4 | R |
| Year Released | 2004 | 2009 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 2987 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 160 HP | 221 HP |
| Engine RPM | 4000 RPM | 3800 RPM |
| Torque | 310 Nm | 510 Nm |
| Torque RPM | 1400 RPM | 2800 RPM |
| Engine Bore Size | 78.4 mm | 83 mm |
| Engine Stroke Size | 86.4 mm | 92 mm |
| Engine Compression Ratio | 18.0:1 | 17.7:1 |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 8.9 seconds | 8.8 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1530 kg | 2298 kg |
| Vehicle Length | 4590 mm | 5180 mm |
| Vehicle Width | 1780 mm | 1670 mm |
| Vehicle Height | 1430 mm | 1930 mm |
| Wheelbase Size | 2430 mm | 3220 mm |
| Fuel Consumption City | 9.1 L/100km | 11.2 L/100km |
| Fuel Consumption Overall | 6.8 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
