2003 GMC Sierra vs. 2011 Porsche 911
To start off, 2011 Porsche 911 is newer by 8 year(s). Which means there will be less support and parts availability for 2003 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2003 GMC Sierra would be higher. At 5,967 cc (8 cylinders), 2003 GMC Sierra is equipped with a bigger engine. In terms of performance, 2011 Porsche 911 (500 HP @ 6000 RPM) has 179 more horse power than 2003 GMC Sierra. (321 HP @ 5000 RPM) In normal driving conditions, 2011 Porsche 911 should accelerate faster than 2003 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2003 GMC Sierra weights approximately 625 kg more than 2011 Porsche 911.
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, 2011 Porsche 911 (650 Nm @ 1950 RPM) has 280 more torque (in Nm) than 2003 GMC Sierra. (370 Nm @ 4000 RPM). This means 2011 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2003 GMC Sierra. 2003 GMC Sierra has automatic transmission and 2011 Porsche 911 has manual transmission. 2011 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 GMC Sierra | 2011 Porsche 911 | |
| Make | GMC | Porsche |
| Model | Sierra | 911 |
| Year Released | 2003 | 2011 |
| Body Type | Pickup | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 5967 cc | 3800 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 321 HP | 500 HP |
| Engine RPM | 5000 RPM | 6000 RPM |
| Torque | 370 Nm | 650 Nm |
| Torque RPM | 4000 RPM | 1950 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2270 kg | 1645 kg |
| Vehicle Length | 5790 mm | 4478 mm |
| Vehicle Width | 2000 mm | 1852 mm |
| Vehicle Height | 1850 mm | 1300 mm |
| Wheelbase Size | 3650 mm | 2350 mm |
| Fuel Tank Capacity | 117 L | 67 L |
