2009 Audi A8 vs. 2008 Mercedes-Benz SLK
To start off, 2009 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2008 Mercedes-Benz SLK would be higher. At 3,936 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 575 kg more than 2008 Mercedes-Benz SLK.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Mercedes-Benz SLK. In wet, icy, snow, or gravel driving conditions, 2009 Audi A8 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 Audi A8 (650 Nm @ 1800 RPM) has 420 more torque (in Nm) than 2008 Mercedes-Benz SLK. (230 Nm @ 2500 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Mercedes-Benz SLK.
Compare all specifications:
| 2009 Audi A8 | 2008 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | SLK |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3936 cc | 1996 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 272 HP | 0 HP |
| Torque | 650 Nm | 230 Nm |
| Torque RPM | 1800 RPM | 2500 RPM |
| Engine Bore Size | 81 mm | 89.9 mm |
| Engine Stroke Size | 95.5 mm | 78.7 mm |
| Engine Compression Ratio | 18.0:1 | 9.5:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 250 km/hour | 223 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 8.2 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1940 kg | 1365 kg |
| Vehicle Length | 5190 mm | 4090 mm |
| Vehicle Width | 1900 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1300 mm |
| Wheelbase Size | 3080 mm | 2410 mm |
| Fuel Consumption Overall | 9.6 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 90 L | 60 L |
