2005 Alpina Roadster vs. 2006 GMC Sierra
To start off, 2006 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2005 Alpina Roadster would be higher. At 5,965 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 Alpina Roadster (301 HP @ 6300 RPM) has 1 more horse power than 2006 GMC Sierra. (300 HP @ 4400 RPM). In normal driving conditions, 2005 Alpina Roadster should accelerate faster than 2006 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 810 kg more than 2005 Alpina Roadster.
Because 2006 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2005 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2006 GMC Sierra will offer significantly more control. 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, 2006 GMC Sierra (488 Nm @ 4000 RPM) has 126 more torque (in Nm) than 2005 Alpina Roadster. (362 Nm @ 4800 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Alpina Roadster.
Compare all specifications:
| 2005 Alpina Roadster | 2006 GMC Sierra | |
| Make | Alpina | GMC |
| Model | Roadster | Sierra |
| Year Released | 2005 | 2006 |
| Body Type | Convertible | Pickup |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 5965 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 301 HP | 300 HP |
| Engine RPM | 6300 RPM | 4400 RPM |
| Torque | 362 Nm | 488 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 6 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1626 kg | 2436 kg |
| Vehicle Length | 4100 mm | 6570 mm |
| Vehicle Width | 1790 mm | 2450 mm |
| Vehicle Height | 1300 mm | 1970 mm |
| Wheelbase Size | 2500 mm | 4250 mm |
| Fuel Consumption Overall | 11.7 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 55 L | 132 L |
