2005 Alpina B3 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Alpina B3. In addition, the cost of maintenance, including insurance, on 2005 Alpina B3 would be higher. At 3,348 cc (6 cylinders), 2005 Alpina B3 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (335 HP @ 7900 RPM) has 34 more horse power than 2005 Alpina B3. (301 HP @ 6300 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2005 Alpina B3. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alpina B3 weights approximately 355 kg more than 2007 BMW Z4.
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, 2005 Alpina B3 (362 Nm @ 4800 RPM) has 47 more torque (in Nm) than 2007 BMW Z4. (315 Nm @ 2750 RPM). This means 2005 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4.
Compare all specifications:
| 2005 Alpina B3 | 2007 BMW Z4 | |
| Make | Alpina | BMW |
| Model | B3 | Z4 |
| Year Released | 2005 | 2007 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3348 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 335 HP |
| Engine RPM | 6300 RPM | 7900 RPM |
| Torque | 362 Nm | 315 Nm |
| Torque RPM | 4800 RPM | 2750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1645 kg | 1290 kg |
| Vehicle Length | 4490 mm | 4100 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1360 mm | 1310 mm |
| Wheelbase Size | 2730 mm | 2500 mm |
| Fuel Tank Capacity | 63 L | 55 L |
