2005 GMC Sierra vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 8 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 4,802 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (439 HP) has 154 more horse power than 2005 GMC Sierra. (285 HP) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 2005 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 110 kg more than 2013 BMW 6 series.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 2013 BMW 6 series (651 Nm) has 251 more torque (in Nm) than 2005 GMC Sierra. (400 Nm). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2005 GMC Sierra.
Compare all specifications:
| 2005 GMC Sierra | 2013 BMW 6 series | |
| Make | GMC | BMW |
| Model | Sierra | 6 series |
| Year Released | 2005 | 2013 |
| Body Type | Pickup | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4802 cc | 4395 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 285 HP | 439 HP |
| Torque | 400 Nm | 651 Nm |
| Engine Bore Size | 96 mm | 84 mm |
| Engine Stroke Size | 83 mm | 89 mm |
| Engine Compression Ratio | 9.5:1 | 10.0 :1 |
| Drive Type | Rear | Rear |
| Number of Seats | 3 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 2160 kg | 2050 kg |
| Vehicle Length | 5710 mm | 4897 mm |
| Vehicle Width | 2000 mm | 1895 mm |
| Vehicle Height | 1810 mm | 1364 mm |
| Wheelbase Size | 3380 mm | 2855 mm |
| Fuel Consumption Highway | 11.2 L/100km | 10.2 L/100km |
| Fuel Consumption City | 14.7 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 129 L | 70 L |
