2005 GMC Sierra vs. 2008 Porsche 911
To start off, 2008 Porsche 911 is newer by 3 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 19 more horse power than 2008 Porsche 911. (321 HP @ 6800 RPM). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 2008 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 893 kg more than 2008 Porsche 911. 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 146 more torque (in Nm) than 2008 Porsche 911. (370 Nm @ 4250 RPM). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2008 Porsche 911. 2005 GMC Sierra has automatic transmission and 2008 Porsche 911 has manual transmission. 2008 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 GMC Sierra | 2008 Porsche 911 | |
| Make | GMC | Porsche |
| Model | Sierra | 911 |
| Year Released | 2005 | 2008 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5964 cc | 3596 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 340 HP | 321 HP |
| Engine RPM | 5200 RPM | 6800 RPM |
| Torque | 516 Nm | 370 Nm |
| Torque RPM | 4000 RPM | 4250 RPM |
| Engine Bore Size | 102 mm | 96 mm |
| Engine Stroke Size | 92 mm | 82.8 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 2345 kg | 1452 kg |
| Vehicle Length | 5740 mm | 4430 mm |
| Vehicle Width | 2000 mm | 1860 mm |
| Vehicle Height | 1910 mm | 1320 mm |
| Wheelbase Size | 3650 mm | 2360 mm |
