2003 Audi A6 vs. 2007 Mercedes-Benz R
To start off, 2007 Mercedes-Benz R is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Audi A6. In addition, the cost of maintenance, including insurance, on 2003 Audi A6 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 354 more horse power than 2003 Audi A6. (149 HP @ 6000 RPM) In normal driving conditions, 2007 Mercedes-Benz R should accelerate faster than 2003 Audi A6.
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, 2007 Mercedes-Benz R (632 Nm @ 5000 RPM) has 397 more torque (in Nm) than 2003 Audi A6. (235 Nm @ 1750 RPM). This means 2007 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6. 2007 Mercedes-Benz R has automatic transmission and 2003 Audi A6 has manual transmission. 2003 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Mercedes-Benz R will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Audi A6 | 2007 Mercedes-Benz R | |
| Make | Audi | Mercedes-Benz |
| Model | A6 | R |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 1799 cc | 6208 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 149 HP | 503 HP |
| Engine RPM | 6000 RPM | 6800 RPM |
| Torque | 235 Nm | 632 Nm |
| Torque RPM | 1750 RPM | 5000 RPM |
| Engine Bore Size | 81 mm | 102.2 mm |
| Engine Stroke Size | 86.4 mm | 94.6 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4800 mm | 5160 mm |
| Vehicle Width | 1820 mm | 1930 mm |
| Vehicle Height | 1460 mm | 1670 mm |
| Wheelbase Size | 2770 mm | 3220 mm |
| Fuel Tank Capacity | 70 L | 80 L |
