2009 Audi Q7 vs. 1998 Mercedes-Benz SL
To start off, 2009 Audi Q7 is newer by 11 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 4,133 cc (8 cylinders), 2009 Audi Q7 is equipped with a bigger engine. In terms of performance, 2009 Audi Q7 (322 HP @ 3750 RPM) has 98 more horse power than 1998 Mercedes-Benz SL. (224 HP @ 5600 RPM). In normal driving conditions, 2009 Audi Q7 should accelerate faster than 1998 Mercedes-Benz SL. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi Q7 weights approximately 590 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 2009 Audi Q7 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, 2009 Audi Q7 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 Q7 (760 Nm @ 2500 RPM) has 445 more torque (in Nm) than 1998 Mercedes-Benz SL. (315 Nm @ 3000 RPM). This means 2009 Audi Q7 will have an easier job in driving up hills or pulling heavy equipment than 1998 Mercedes-Benz SL.
Compare all specifications:
| 2009 Audi Q7 | 1998 Mercedes-Benz SL | |
| Make | Audi | Mercedes-Benz |
| Model | Q7 | SL |
| Year Released | 2009 | 1998 |
| Body Type | SUV | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4133 cc | 3197 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 322 HP | 224 HP |
| Engine RPM | 3750 RPM | 5600 RPM |
| Torque | 760 Nm | 315 Nm |
| Torque RPM | 2500 RPM | 3000 RPM |
| Engine Bore Size | 83 mm | 89.9 mm |
| Engine Stroke Size | 95.5 mm | 84 mm |
| Engine Compression Ratio | 16.5:1 | 10.1:1 |
| Top Speed | 236 km/hour | 238 km/hour |
| Acceleration 0-100mph | 6.4 seconds | 8.4 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2420 kg | 1830 kg |
| Vehicle Length | 5090 mm | 4510 mm |
| Vehicle Width | 2090 mm | 1820 mm |
| Vehicle Height | 1780 mm | 1300 mm |
| Wheelbase Size | 3010 mm | 2520 mm |
| Fuel Tank Capacity | 100 L | 80 L |
