2009 Mercedes-Benz S vs. 2008 Mercedes-Benz R
To start off, 2009 Mercedes-Benz S 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 3,498 cc (6 cylinders), 2009 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz S (268 HP @ 6000 RPM) has 80 more horse power than 2008 Mercedes-Benz R. (188 HP @ 4000 RPM). In normal driving conditions, 2009 Mercedes-Benz S should accelerate faster than 2008 Mercedes-Benz R. With that said, vehicle weight also plays an important factor in acceleration. 2008 Mercedes-Benz R weights approximately 365 kg more than 2009 Mercedes-Benz S.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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 (440 Nm @ 1400 RPM) has 90 more torque (in Nm) than 2009 Mercedes-Benz S. (350 Nm @ 2400 RPM). This means 2008 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2009 Mercedes-Benz S.
Compare all specifications:
| 2009 Mercedes-Benz S | 2008 Mercedes-Benz R | |
| Make | Mercedes-Benz | Mercedes-Benz |
| Model | S | R |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3498 cc | 2987 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 268 HP | 188 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 350 Nm | 440 Nm |
| Torque RPM | 2400 RPM | 1400 RPM |
| Engine Bore Size | 92.9 mm | 83 mm |
| Engine Stroke Size | 86 mm | 92 mm |
| Engine Compression Ratio | 10.7:1 | 17.7:1 |
| Fuel Type | Gasoline | Diesel |
| Top Speed | 250 km/hour | 210 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 9.7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1830 kg | 2195 kg |
| Vehicle Length | 5080 mm | 4940 mm |
| Vehicle Width | 1480 mm | 1930 mm |
| Vehicle Height | 1880 mm | 1670 mm |
| Wheelbase Size | 3040 mm | 2990 mm |
| Fuel Consumption Overall | 10.3 L/100km | 9 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
