1999 Mercedes-Benz S vs. 2008 Porsche Cayenne
To start off, 2008 Porsche Cayenne is newer by 9 year(s). Which means there will be less support and parts availability for 1999 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 1999 Mercedes-Benz S would be higher. At 4,966 cc (8 cylinders), 1999 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2008 Porsche Cayenne (494 HP @ 6000 RPM) has 192 more horse power than 1999 Mercedes-Benz S. (302 HP @ 5500 RPM) In normal driving conditions, 2008 Porsche Cayenne should accelerate faster than 1999 Mercedes-Benz S. With that said, vehicle weight also plays an important factor in acceleration. 2008 Porsche Cayenne weights approximately 576 kg more than 1999 Mercedes-Benz S. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 1999 Mercedes-Benz S. In wet, icy, snow, or gravel driving conditions, 2008 Porsche Cayenne 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, 2008 Porsche Cayenne (700 Nm @ 2250 RPM) has 240 more torque (in Nm) than 1999 Mercedes-Benz S. (460 Nm @ 2700 RPM). This means 2008 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 1999 Mercedes-Benz S.
Compare all specifications:
| 1999 Mercedes-Benz S | 2008 Porsche Cayenne | |
| Make | Mercedes-Benz | Porsche |
| Model | S | Cayenne |
| Year Released | 1999 | 2008 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4966 cc | 4805 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 302 HP | 494 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 460 Nm | 700 Nm |
| Torque RPM | 2700 RPM | 2250 RPM |
| Engine Bore Size | 97 mm | 96 mm |
| Engine Stroke Size | 84 mm | 83 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1854 kg | 2430 kg |
| Vehicle Length | 5170 mm | 4800 mm |
| Vehicle Width | 1860 mm | 1930 mm |
| Vehicle Height | 1460 mm | 1700 mm |
| Wheelbase Size | 3090 mm | 2860 mm |
| Fuel Tank Capacity | 88 L | 100 L |
