2009 Mercedes-Benz SLK vs. 2005 Mercedes-Benz S
To start off, 2009 Mercedes-Benz SLK is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2005 Mercedes-Benz S would be higher. At 5,439 cc (8 cylinders), 2009 Mercedes-Benz SLK is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz SLK (355 HP @ 5750 RPM) has 53 more horse power than 2005 Mercedes-Benz S. (302 HP @ 5600 RPM). In normal driving conditions, 2009 Mercedes-Benz SLK should accelerate faster than 2005 Mercedes-Benz S. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz S weights approximately 740 kg more than 2009 Mercedes-Benz SLK.
Because 2005 Mercedes-Benz S is four wheel drive (4WD), it will have significant more traction and grip than 2009 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 2005 Mercedes-Benz S 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 SLK (510 Nm @ 4000 RPM) has 50 more torque (in Nm) than 2005 Mercedes-Benz S. (460 Nm @ 2700 RPM). This means 2009 Mercedes-Benz SLK will have an easier job in driving up hills or pulling heavy equipment than 2005 Mercedes-Benz S.
Compare all specifications:
| 2009 Mercedes-Benz SLK | 2005 Mercedes-Benz S | |
| Make | Mercedes-Benz | Mercedes-Benz |
| Model | SLK | S |
| Year Released | 2009 | 2005 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5439 cc | 4966 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 3 valves | 3 valves |
| Horse Power | 355 HP | 302 HP |
| Engine RPM | 5750 RPM | 5600 RPM |
| Torque | 510 Nm | 460 Nm |
| Torque RPM | 4000 RPM | 2700 RPM |
| Engine Bore Size | 97 mm | 97 mm |
| Engine Stroke Size | 92 mm | 84 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1240 kg | 1980 kg |
| Vehicle Length | 4110 mm | 5050 mm |
| Vehicle Width | 1800 mm | 1860 mm |
| Vehicle Height | 1290 mm | 1460 mm |
| Wheelbase Size | 2440 mm | 2720 mm |
| Fuel Consumption Overall | 13.8 L/100km | 12.9 L/100km |
| Fuel Tank Capacity | 70 L | 88 L |
