2009 Alpina B7 vs. 2006 Alpina B3
To start off, 2009 Alpina B7 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 Alpina B3. In addition, the cost of maintenance, including insurance, on 2006 Alpina B3 would be higher. At 4,397 cc (8 cylinders), 2009 Alpina B7 is equipped with a bigger engine. In terms of performance, 2009 Alpina B7 (493 HP @ 5500 RPM) has 192 more horse power than 2006 Alpina B3. (301 HP @ 6300 RPM). In normal driving conditions, 2009 Alpina B7 should accelerate faster than 2006 Alpina B3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Alpina B7 weights approximately 364 kg more than 2006 Alpina B3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2009 Alpina B7 (700 Nm @ 4250 RPM) has 338 more torque (in Nm) than 2006 Alpina B3. (362 Nm @ 4800 RPM). This means 2009 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2006 Alpina B3.
Compare all specifications:
| 2009 Alpina B7 | 2006 Alpina B3 | |
| Make | Alpina | Alpina |
| Model | B7 | B3 |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4397 cc | 3346 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 301 HP |
| Engine RPM | 5500 RPM | 6300 RPM |
| Torque | 700 Nm | 362 Nm |
| Torque RPM | 4250 RPM | 4800 RPM |
| Engine Bore Size | 92 mm | 87 mm |
| Engine Stroke Size | 82.8 mm | 93.8 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 300 km/hour | 264 km/hour |
| Acceleration 0-100mph | 5 seconds | 5.8 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1990 kg | 1626 kg |
| Vehicle Length | 5180 mm | 4490 mm |
| Vehicle Width | 1910 mm | 1760 mm |
| Vehicle Height | 1450 mm | 1360 mm |
| Wheelbase Size | 3140 mm | 2730 mm |
| Fuel Consumption Overall | 12.9 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 88 L | 63 L |
