2007 Alpina B7 vs. 2003 BMW 320
To start off, 2007 Alpina B7 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW 320. In addition, the cost of maintenance, including insurance, on 2003 BMW 320 would be higher. At 4,396 cc (8 cylinders), 2007 Alpina B7 is equipped with a bigger engine. In terms of performance, 2007 Alpina B7 (493 HP @ 5500 RPM) has 351 more horse power than 2003 BMW 320. (142 HP @ 6100 RPM). In normal driving conditions, 2007 Alpina B7 should accelerate faster than 2003 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alpina B7 weights approximately 650 kg more than 2003 BMW 320. 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, 2007 Alpina B7 (700 Nm @ 4250 RPM) has 500 more torque (in Nm) than 2003 BMW 320. (200 Nm @ 3750 RPM). This means 2007 Alpina B7 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 320. 2007 Alpina B7 has automatic transmission and 2003 BMW 320 has manual transmission. 2003 BMW 320 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Alpina B7 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Alpina B7 | 2003 BMW 320 | |
| Make | Alpina | BMW |
| Model | B7 | 320 |
| Year Released | 2007 | 2003 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4396 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 493 HP | 142 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 700 Nm | 200 Nm |
| Torque RPM | 4250 RPM | 3750 RPM |
| Engine Bore Size | 92 mm | 84 mm |
| Engine Stroke Size | 82.7 mm | 90 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1960 kg | 1310 kg |
| Vehicle Length | 5040 mm | 4480 mm |
| Vehicle Width | 1910 mm | 1770 mm |
| Vehicle Height | 1480 mm | 1420 mm |
| Wheelbase Size | 3000 mm | 2710 mm |
| Fuel Tank Capacity | 88 L | 67 L |
