2008 GMC Sierra vs. 2009 Porsche 911
To start off, 2009 Porsche 911 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2008 GMC Sierra would be higher. At 6,000 cc (8 cylinders), 2008 GMC Sierra is equipped with a bigger engine. In terms of performance, 2009 Porsche 911 (473 HP @ 6000 RPM) has 120 more horse power than 2008 GMC Sierra. (353 HP @ 5400 RPM) In normal driving conditions, 2009 Porsche 911 should accelerate faster than 2008 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 1234 kg more than 2009 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, 2009 Porsche 911 (620 Nm @ 1950 RPM) has 114 more torque (in Nm) than 2008 GMC Sierra. (506 Nm @ 4400 RPM). This means 2009 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2008 GMC Sierra.
Compare all specifications:
| 2008 GMC Sierra | 2009 Porsche 911 | |
| Make | GMC | Porsche |
| Model | Sierra | 911 |
| Year Released | 2008 | 2009 |
| Body Type | Pickup | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 6000 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 353 HP | 473 HP |
| Engine RPM | 5400 RPM | 6000 RPM |
| Torque | 506 Nm | 620 Nm |
| Torque RPM | 4400 RPM | 1950 RPM |
| Engine Compression Ratio | 9.6:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 3 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2659 kg | 1425 kg |
| Vehicle Length | 5720 mm | 4460 mm |
| Vehicle Width | 2440 mm | 1310 mm |
| Vehicle Height | 1960 mm | 1860 mm |
| Wheelbase Size | 3380 mm | 2360 mm |
| Fuel Consumption Overall | 13.8 L/100km | 13.7 L/100km |
| Fuel Tank Capacity | 129 L | 67 L |
