2009 Alpina B7 vs. 2003 Alpina B3
To start off, 2009 Alpina B7 is newer by 6 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 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 216 more horse power than 2003 Alpina B3. (277 HP @ 6300 RPM). In normal driving conditions, 2009 Alpina B7 should accelerate faster than 2003 Alpina B3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Alpina B7 weights approximately 430 kg more than 2003 Alpina B3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Alpina B3 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Alpina B7. In wet, icy, snow, or gravel driving conditions, 2003 Alpina B3 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, 2009 Alpina B7 (700 Nm @ 4250 RPM) has 365 more torque (in Nm) than 2003 Alpina B3. (335 Nm @ 4500 RPM). This means 2009 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alpina B3.
Compare all specifications:
| 2009 Alpina B7 | 2003 Alpina B3 | |
| Make | Alpina | Alpina |
| Model | B7 | B3 |
| Year Released | 2009 | 2003 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4397 cc | 3301 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 277 HP |
| Engine RPM | 5500 RPM | 6300 RPM |
| Torque | 700 Nm | 335 Nm |
| Torque RPM | 4250 RPM | 4500 RPM |
| Engine Bore Size | 92 mm | 86.4 mm |
| Engine Stroke Size | 82.8 mm | 93.9 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 5 seconds | 7.2 seconds |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1990 kg | 1560 kg |
| Vehicle Length | 5180 mm | 4480 mm |
| Vehicle Width | 1910 mm | 1750 mm |
| Vehicle Height | 1450 mm | 1420 mm |
| Fuel Consumption Overall | 12.9 L/100km | 11.7 L/100km |
| Fuel Tank Capacity | 88 L | 63 L |
