2005 GMC Sierra vs. 2007 Porsche Cayenne
To start off, 2007 Porsche Cayenne is newer by 2 year(s). Which means there will be less support and parts availability for 2005 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2005 GMC Sierra would be higher. At 5,964 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (340 HP @ 5200 RPM) has 92 more horse power than 2007 Porsche Cayenne. (248 HP @ 6000 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 2007 Porsche Cayenne. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 185 kg more than 2007 Porsche Cayenne. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2005 GMC Sierra (516 Nm @ 4000 RPM) has 206 more torque (in Nm) than 2007 Porsche Cayenne. (310 Nm @ 2500 RPM). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2007 Porsche Cayenne.
Compare all specifications:
| 2005 GMC Sierra | 2007 Porsche Cayenne | |
| Make | GMC | Porsche |
| Model | Sierra | Cayenne |
| Year Released | 2005 | 2007 |
| Body Type | Pickup | SUV |
| Engine Position | Front | Front |
| Engine Size | 5964 cc | 3189 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 340 HP | 248 HP |
| Engine RPM | 5200 RPM | 6000 RPM |
| Torque | 516 Nm | 310 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Bore Size | 102 mm | 84 mm |
| Engine Stroke Size | 92 mm | 95.9 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 2345 kg | 2160 kg |
| Vehicle Length | 5740 mm | 4790 mm |
| Vehicle Width | 2000 mm | 1930 mm |
| Vehicle Height | 1910 mm | 1710 mm |
| Wheelbase Size | 3650 mm | 2860 mm |
