2005 Audi A8 vs. 2007 Mercedes-Benz SL
To start off, 2007 Mercedes-Benz SL is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz SL (510 HP @ 5000 RPM) has 66 more horse power than 2005 Audi A8. (444 HP @ 6200 RPM) In normal driving conditions, 2007 Mercedes-Benz SL should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz SL weights approximately 50 kg more than 2005 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2005 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, 2007 Mercedes-Benz SL (830 Nm @ 1900 RPM) has 250 more torque (in Nm) than 2005 Audi A8. (580 Nm @ 4000 RPM). This means 2007 Mercedes-Benz SL will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8.
Compare all specifications:
| 2005 Audi A8 | 2007 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | SL |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 5513 cc |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 3 valves |
| Horse Power | 444 HP | 510 HP |
| Engine RPM | 6200 RPM | 5000 RPM |
| Torque | 580 Nm | 830 Nm |
| Torque RPM | 4000 RPM | 1900 RPM |
| Engine Bore Size | 84 mm | 82 mm |
| Engine Stroke Size | 90.2 mm | 87 mm |
| Engine Compression Ratio | 11.0:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5.4 seconds | 4.8 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 | 1995 kg | 2045 kg |
| Vehicle Length | 5070 mm | 4540 mm |
| Vehicle Width | 1900 mm | 1830 mm |
| Vehicle Height | 1450 mm | 1300 mm |
| Wheelbase Size | 3080 mm | 2570 mm |
| Fuel Consumption Overall | 13.8 L/100km | 14.3 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
