2007 Audi RS4 vs. 1999 Mercedes-Benz SL
To start off, 2007 Audi RS4 is newer by 8 year(s). Which means there will be less support and parts availability for 1999 Mercedes-Benz SL. In addition, the cost of maintenance, including insurance, on 1999 Mercedes-Benz SL would be higher. At 4,163 cc (8 cylinders), 2007 Audi RS4 is equipped with a bigger engine. In terms of performance, 2007 Audi RS4 (414 HP @ 7800 RPM) has 224 more horse power than 1999 Mercedes-Benz SL. (190 HP @ 5500 RPM). In normal driving conditions, 2007 Audi RS4 should accelerate faster than 1999 Mercedes-Benz SL. With that said, vehicle weight also plays an important factor in acceleration. 1999 Mercedes-Benz SL weights approximately 110 kg more than 2007 Audi RS4.
Because 2007 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Mercedes-Benz SL. In wet, icy, snow, or gravel driving conditions, 2007 Audi RS4 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 Audi RS4 (431 Nm @ 5500 RPM) has 160 more torque (in Nm) than 1999 Mercedes-Benz SL. (271 Nm @ 3750 RPM). This means 2007 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 1999 Mercedes-Benz SL.
Compare all specifications:
| 2007 Audi RS4 | 1999 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | RS4 | SL |
| Year Released | 2007 | 1999 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2799 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 190 HP |
| Engine RPM | 7800 RPM | 5500 RPM |
| Torque | 431 Nm | 271 Nm |
| Torque RPM | 5500 RPM | 3750 RPM |
| Engine Bore Size | 84.5 mm | 89.9 mm |
| Engine Stroke Size | 92.8 mm | 73.5 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1650 kg | 1760 kg |
| Vehicle Length | 4590 mm | 4470 mm |
| Vehicle Width | 1820 mm | 1820 mm |
| Vehicle Height | 1420 mm | 1300 mm |
| Wheelbase Size | 2660 mm | 2520 mm |
| Fuel Tank Capacity | 63 L | 80 L |
