2003 Alpina B7 vs. 2006 GMC Sierra
To start off, 2006 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Alpina B7. In addition, the cost of maintenance, including insurance, on 2003 Alpina B7 would be higher. At 5,996 cc (8 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2003 Alpina B7 (492 HP @ 5500 RPM) has 147 more horse power than 2006 GMC Sierra. (345 HP @ 5200 RPM). In normal driving conditions, 2003 Alpina B7 should accelerate faster than 2006 GMC Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 488 kg more than 2003 Alpina B7.
Because 2006 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alpina B7. 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, 2003 Alpina B7 (700 Nm @ 4250 RPM) has 185 more torque (in Nm) than 2006 GMC Sierra. (515 Nm @ 4000 RPM). This means 2003 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2006 GMC Sierra.
Compare all specifications:
| 2003 Alpina B7 | 2006 GMC Sierra | |
| Make | Alpina | GMC |
| Model | B7 | Sierra |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 4399 cc | 5996 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 492 HP | 345 HP |
| Engine RPM | 5500 RPM | 5200 RPM |
| Torque | 700 Nm | 515 Nm |
| Torque RPM | 4250 RPM | 4000 RPM |
| Engine Compression Ratio | 9.0:1 | 9.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1990 kg | 2478 kg |
| Vehicle Length | 5180 mm | 5850 mm |
| Vehicle Width | 1910 mm | 2000 mm |
| Vehicle Height | 1450 mm | 1910 mm |
| Wheelbase Size | 3000 mm | 3650 mm |
| Fuel Tank Capacity | 88 L | 98 L |
