2003 Alpina B3 vs. 2006 BMW X5
To start off, 2006 BMW X5 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Alpina B3. In addition, the cost of maintenance, including insurance, on 2003 Alpina B3 would be higher. At 3,344 cc (6 cylinders), 2003 Alpina B3 is equipped with a bigger engine. In terms of performance, 2003 Alpina B3 (301 HP @ 6200 RPM) has 74 more horse power than 2006 BMW X5. (227 HP @ 5900 RPM). In normal driving conditions, 2003 Alpina B3 should accelerate faster than 2006 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 425 kg more than 2003 Alpina B3.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alpina B3. In wet, icy, snow, or gravel driving conditions, 2006 BMW X5 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 B3 (362 Nm @ 4800 RPM) has 72 more torque (in Nm) than 2006 BMW X5. (290 Nm @ 3500 RPM). This means 2003 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5.
Compare all specifications:
| 2003 Alpina B3 | 2006 BMW X5 | |
| Make | Alpina | BMW |
| Model | B3 | X5 |
| Year Released | 2003 | 2006 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 3344 cc | 2978 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 227 HP |
| Engine RPM | 6200 RPM | 5900 RPM |
| Torque | 362 Nm | 290 Nm |
| Torque RPM | 4800 RPM | 3500 RPM |
| Engine Bore Size | 87 mm | 84.1 mm |
| Engine Stroke Size | 93.8 mm | 89.7 mm |
| Engine Compression Ratio | 10.0:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1645 kg | 2070 kg |
| Vehicle Length | 4490 mm | 4670 mm |
| Vehicle Width | 1760 mm | 1880 mm |
| Vehicle Height | 1360 mm | 1770 mm |
| Wheelbase Size | 2730 mm | 2830 mm |
| Fuel Tank Capacity | 63 L | 93 L |
