2009 Alpina B7 vs. 2006 BMW 525
To start off, 2009 Alpina B7 is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW 525. In addition, the cost of maintenance, including insurance, on 2006 BMW 525 would be higher. At 4,396 cc (8 cylinders), 2009 Alpina B7 is equipped with a bigger engine. In terms of performance, 2009 Alpina B7 (493 HP @ 5500 RPM) has 278 more horse power than 2006 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2009 Alpina B7 should accelerate faster than 2006 BMW 525.
Because 2006 BMW 525 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, 2006 BMW 525 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 450 more torque (in Nm) than 2006 BMW 525. (250 Nm @ 2750 RPM). This means 2009 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 525.
Compare all specifications:
| 2009 Alpina B7 | 2006 BMW 525 | |
| Make | Alpina | BMW |
| Model | B7 | 525 |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4396 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 215 HP |
| Engine RPM | 5500 RPM | 6500 RPM |
| Torque | 700 Nm | 250 Nm |
| Torque RPM | 4250 RPM | 2750 RPM |
| Engine Bore Size | 92 mm | 78.9 mm |
| Engine Stroke Size | 82.7 mm | 82 mm |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 4.9 seconds | 8.5 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 5050 mm | 4850 mm |
| Vehicle Width | 1910 mm | 1850 mm |
| Vehicle Height | 1480 mm | 1500 mm |
| Wheelbase Size | 3000 mm | 2840 mm |
| Fuel Consumption Overall | 12.8 L/100km | 9.9 L/100km |
| Fuel Tank Capacity | 88 L | 70 L |
