2007 GMC Sierra vs. 2005 Porsche 911
To start off, 2007 GMC Sierra is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Porsche 911. In addition, the cost of maintenance, including insurance, on 2005 Porsche 911 would be higher. At 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (316 HP @ 4250 RPM) has 4 more horse power than 2007 GMC Sierra. (312 HP @ 4400 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2007 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1193 kg more than 2005 Porsche 911.
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, 2007 GMC Sierra (506 Nm @ 4400 RPM) has 136 more torque (in Nm) than 2005 Porsche 911. (370 Nm @ 4250 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Porsche 911.
Compare all specifications:
| 2007 GMC Sierra | 2005 Porsche 911 | |
| Make | GMC | Porsche |
| Model | Sierra | 911 |
| Year Released | 2007 | 2005 |
| Body Type | Pickup | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 5999 cc | 3595 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 312 HP | 316 HP |
| Engine RPM | 4400 RPM | 4250 RPM |
| Torque | 506 Nm | 370 Nm |
| Torque RPM | 4400 RPM | 4250 RPM |
| Engine Bore Size | 102 mm | 96 mm |
| Engine Stroke Size | 92 mm | 82.8 mm |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2678 kg | 1485 kg |
| Vehicle Length | 5720 mm | 4440 mm |
| Vehicle Width | 2440 mm | 1780 mm |
| Vehicle Height | 1930 mm | 1310 mm |
| Wheelbase Size | 3380 mm | 2360 mm |
| Fuel Consumption Overall | 10.7 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 129 L | 64 L |
