2008 Cadillac STS vs. 2009 Porsche Cayenne
To start off, 2009 Porsche Cayenne is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2008 Cadillac STS would be higher. At 4,565 cc (8 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 2008 Cadillac STS (321 HP @ 6400 RPM) has 35 more horse power than 2009 Porsche Cayenne. (286 HP @ 6200 RPM). In normal driving conditions, 2008 Cadillac STS should accelerate faster than 2009 Porsche Cayenne.
Because 2009 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 2008 Cadillac STS. In wet, icy, snow, or gravel driving conditions, 2009 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 Cadillac STS (427 Nm @ 4400 RPM) has 42 more torque (in Nm) than 2009 Porsche Cayenne. (385 Nm @ 3000 RPM). This means 2008 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2009 Porsche Cayenne.
Compare all specifications:
| 2008 Cadillac STS | 2009 Porsche Cayenne | |
| Make | Cadillac | Porsche |
| Model | STS | Cayenne |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4565 cc | 3597 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 286 HP |
| Engine RPM | 6400 RPM | 6200 RPM |
| Torque | 427 Nm | 385 Nm |
| Torque RPM | 4400 RPM | 3000 RPM |
| Engine Bore Size | 93 mm | 89 mm |
| Engine Stroke Size | 84 mm | 96.4 mm |
| Engine Compression Ratio | 10.5:1 | 12.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 227 km/hour |
| Acceleration 0-100mph | 6.5 seconds | 8.5 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4990 mm | 4800 mm |
| Vehicle Width | 1850 mm | 1710 mm |
| Vehicle Height | 1470 mm | 1930 mm |
| Wheelbase Size | 2960 mm | 2860 mm |
| Fuel Tank Capacity | 66 L | 100 L |
