2003 Mazda 6 vs. 2006 Mercedes-Benz R
To start off, 2006 Mercedes-Benz R is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Mazda 6. In addition, the cost of maintenance, including insurance, on 2003 Mazda 6 would be higher. At 2,987 cc (6 cylinders), 2006 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2006 Mercedes-Benz R (187 HP @ 4000 RPM) has 27 more horse power than 2003 Mazda 6. (160 HP @ 6500 RPM) In normal driving conditions, 2006 Mercedes-Benz R should accelerate faster than 2003 Mazda 6. With that said, vehicle weight also plays an important factor in acceleration. 2006 Mercedes-Benz R weights approximately 615 kg more than 2003 Mazda 6. 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, 2006 Mercedes-Benz R (441 Nm @ 1400 RPM) has 236 more torque (in Nm) than 2003 Mazda 6. (205 Nm @ 4000 RPM). This means 2006 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2003 Mazda 6.
Compare all specifications:
| 2003 Mazda 6 | 2006 Mercedes-Benz R | |
| Make | Mazda | Mercedes-Benz |
| Model | 6 | R |
| Year Released | 2003 | 2006 |
| Body Type | Station Wagon | Minivan |
| Engine Position | Front | Front |
| Engine Size | 2261 cc | 2987 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 160 HP | 187 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 205 Nm | 441 Nm |
| Torque RPM | 4000 RPM | 1400 RPM |
| Engine Bore Size | 87.5 mm | 83 mm |
| Engine Stroke Size | 94 mm | 92 mm |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 190 km/hour | 210 km/hour |
| Acceleration 0-100mph | 12.3 seconds | 9.8 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1605 kg | 2220 kg |
| Vehicle Length | 4710 mm | 4930 mm |
| Vehicle Width | 1790 mm | 1930 mm |
| Vehicle Height | 1500 mm | 1660 mm |
| Wheelbase Size | 2680 mm | 2990 mm |
| Fuel Tank Capacity | 62 L | 80 L |
