2003 Alpina B7 vs. 2007 BMW 523
To start off, 2007 BMW 523 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alpina B7. In addition, the cost of maintenance, including insurance, on 2003 Alpina B7 would be higher. At 4,396 cc (8 cylinders), 2003 Alpina B7 is equipped with a bigger engine. In terms of performance, 2003 Alpina B7 (492 HP @ 5500 RPM) has 317 more horse power than 2007 BMW 523. (175 HP @ 5800 RPM). In normal driving conditions, 2003 Alpina B7 should accelerate faster than 2007 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina B7 weights approximately 425 kg more than 2007 BMW 523. 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, 2003 Alpina B7 (700 Nm @ 3000 RPM) has 470 more torque (in Nm) than 2007 BMW 523. (230 Nm @ 3500 RPM). This means 2003 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 523.
Compare all specifications:
| 2003 Alpina B7 | 2007 BMW 523 | |
| Make | Alpina | BMW |
| Model | B7 | 523 |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Sedan |
| 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 | 492 HP | 175 HP |
| Engine RPM | 5500 RPM | 5800 RPM |
| Torque | 700 Nm | 230 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Engine Bore Size | 92 mm | 78.8 mm |
| Engine Stroke Size | 82.7 mm | 82 mm |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 300 km/hour | 230 km/hour |
| Acceleration 0-100mph | 5.5 seconds | 9.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2000 kg | 1575 kg |
| Vehicle Length | 5040 mm | 4850 mm |
| Vehicle Width | 1910 mm | 1850 mm |
| Vehicle Height | 1500 mm | 1470 mm |
| Wheelbase Size | 3000 mm | 2890 mm |
| Fuel Consumption Overall | 11.2 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 88 L | 70 L |
