2005 Audi A8 vs. 1998 Mercedes-Benz SL
To start off, 2005 Audi A8 is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 1998 Mercedes-Benz SL would be higher. At 5,998 cc, 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (444 HP @ 6200 RPM) has 254 more horse power than 1998 Mercedes-Benz SL. (190 HP @ 5500 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 1998 Mercedes-Benz SL. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 235 kg more than 1998 Mercedes-Benz SL. 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 1998 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, 2005 Audi A8 (580 Nm @ 4000 RPM) has 310 more torque (in Nm) than 1998 Mercedes-Benz SL. (270 Nm @ 3750 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1998 Mercedes-Benz SL.
Compare all specifications:
| 2005 Audi A8 | 1998 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | A8 | SL |
| Year Released | 2005 | 1998 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 2797 cc |
| Engine Type | W | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 190 HP |
| Engine RPM | 6200 RPM | 5500 RPM |
| Torque | 580 Nm | 270 Nm |
| Torque RPM | 4000 RPM | 3750 RPM |
| Engine Bore Size | 84 mm | 89.9 mm |
| Engine Stroke Size | 90.2 mm | 73.5 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| 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 | 1760 kg |
| Vehicle Length | 5070 mm | 4510 mm |
| Vehicle Width | 1900 mm | 1820 mm |
| Vehicle Height | 1450 mm | 1300 mm |
| Wheelbase Size | 3080 mm | 2520 mm |
| Fuel Tank Capacity | 90 L | 80 L |
