2009 Audi A8 vs. 2004 Mercedes-Benz SLK
To start off, 2009 Audi A8 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Mercedes-Benz SLK. In addition, the cost of maintenance, including insurance, on 2004 Mercedes-Benz SLK would be higher. At 5,204 cc (10 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (444 HP @ 7000 RPM) has 252 more horse power than 2004 Mercedes-Benz SLK. (192 HP @ 4200 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2004 Mercedes-Benz SLK. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 554 kg more than 2004 Mercedes-Benz SLK. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 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 (540 Nm) has 269 more torque (in Nm) than 2004 Mercedes-Benz SLK. (271 Nm). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Mercedes-Benz SLK.
Compare all specifications:
| 2009 Audi A8 | 2004 Mercedes-Benz SLK | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | SLK |
| Year Released | 2009 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 2307 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 192 HP |
| Engine RPM | 7000 RPM | 4200 RPM |
| Torque | 540 Nm | 271 Nm |
| Engine Bore Size | 84.5 mm | 91.1 mm |
| Engine Stroke Size | 92.8 mm | 88 mm |
| Engine Compression Ratio | 12.5:1 | 9.0:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1940 kg | 1386 kg |
| Vehicle Length | 5070 mm | 4020 mm |
| Vehicle Width | 1900 mm | 1720 mm |
| Vehicle Height | 1430 mm | 1290 mm |
| Wheelbase Size | 2950 mm | 2410 mm |
| Fuel Consumption Highway | 12.4 L/100km | 8.4 L/100km |
| Fuel Consumption City | 18.2 L/100km | 12.4 L/100km |
| Fuel Consumption Overall | 15.8 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 90 L | 60 L |
