2009 Cadillac STS vs. 2008 Porsche Cayenne
To start off, 2009 Cadillac STS is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Porsche Cayenne. In addition, the cost of maintenance, including insurance, on 2008 Porsche Cayenne would be higher. At 4,511 cc (8 cylinders), 2008 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2008 Porsche Cayenne (350 HP @ 6000 RPM) has 48 more horse power than 2009 Cadillac STS. (302 HP @ 6300 RPM) In normal driving conditions, 2008 Porsche Cayenne should accelerate faster than 2009 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2008 Porsche Cayenne weights approximately 760 kg more than 2009 Cadillac STS. 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 2009 Cadillac STS. 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 (420 Nm @ 2500 RPM) has 51 more torque (in Nm) than 2009 Cadillac STS. (369 Nm @ 5200 RPM). This means 2008 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 2009 Cadillac STS. 2009 Cadillac STS has automatic transmission and 2008 Porsche Cayenne has manual transmission. 2008 Porsche Cayenne will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Cadillac STS | 2008 Porsche Cayenne | |
| Make | Cadillac | Porsche |
| Model | STS | Cayenne |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 3600 cc | 4511 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 302 HP | 350 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 369 Nm | 420 Nm |
| Torque RPM | 5200 RPM | 2500 RPM |
| Engine Compression Ratio | 3.7:1 | 11.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1560 kg | 2320 kg |
| Vehicle Length | 5000 mm | 4790 mm |
| Vehicle Width | 1850 mm | 1930 mm |
| Vehicle Height | 1470 mm | 1710 mm |
| Wheelbase Size | 2960 mm | 2860 mm |
| Fuel Consumption Overall | 11.9 L/100km | 16 L/100km |
| Fuel Tank Capacity | 64 L | 100 L |
