2006 Alpina B5 vs. 2003 Buick Rainier
To start off, 2006 Alpina B5 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Buick Rainier. In addition, the cost of maintenance, including insurance, on 2003 Buick Rainier would be higher. At 4,398 cc (8 cylinders), 2006 Alpina B5 is equipped with a bigger engine. In terms of performance, 2006 Alpina B5 (492 HP @ 5500 RPM) has 221 more horse power than 2003 Buick Rainier. (271 HP @ 6000 RPM). In normal driving conditions, 2006 Alpina B5 should accelerate faster than 2003 Buick Rainier.
Because 2003 Buick Rainier is four wheel drive (4WD), it will have significant more traction and grip than 2006 Alpina B5. In wet, icy, snow, or gravel driving conditions, 2003 Buick Rainier 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 Alpina B5 (701 Nm @ 4250 RPM) has 328 more torque (in Nm) than 2003 Buick Rainier. (373 Nm @ 3600 RPM). This means 2006 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2003 Buick Rainier.
Compare all specifications:
| 2006 Alpina B5 | 2003 Buick Rainier | |
| Make | Alpina | Buick |
| Model | B5 | Rainier |
| Year Released | 2006 | 2003 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 4195 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 492 HP | 271 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 701 Nm | 373 Nm |
| Torque RPM | 4250 RPM | 3600 RPM |
| Engine Bore Size | 92 mm | 93 mm |
| Engine Stroke Size | 82.7 mm | 102 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4850 mm | 4920 mm |
| Vehicle Width | 1850 mm | 1920 mm |
| Vehicle Height | 1470 mm | 1900 mm |
| Wheelbase Size | 3000 mm | 2880 mm |
| Fuel Tank Capacity | 70 L | 83 L |
