2006 Alpina B5 vs. 2008 BMW Z4
To start off, 2008 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Alpina B5. In addition, the cost of maintenance, including insurance, on 2006 Alpina B5 would be higher. At 4,396 cc (8 cylinders), 2006 Alpina B5 is equipped with a bigger engine. In terms of performance, 2006 Alpina B5 (492 HP @ 5500 RPM) has 231 more horse power than 2008 BMW Z4. (261 HP @ 6600 RPM). In normal driving conditions, 2006 Alpina B5 should accelerate faster than 2008 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, 2006 Alpina B5 (700 Nm @ 4250 RPM) has 384 more torque (in Nm) than 2008 BMW Z4. (316 Nm @ 2750 RPM). This means 2006 Alpina B5 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4. 2006 Alpina B5 has automatic transmission and 2008 BMW Z4 has manual transmission. 2008 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Alpina B5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Alpina B5 | 2008 BMW Z4 | |
| Make | Alpina | BMW |
| Model | B5 | Z4 |
| Year Released | 2006 | 2008 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4396 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 492 HP | 261 HP |
| Engine RPM | 5500 RPM | 6600 RPM |
| Torque | 700 Nm | 316 Nm |
| Torque RPM | 4250 RPM | 2750 RPM |
| Engine Bore Size | 92 mm | 85 mm |
| Engine Stroke Size | 82.7 mm | 88 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 300 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 5.7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Length | 4850 mm | 4100 mm |
| Vehicle Width | 1850 mm | 1790 mm |
| Vehicle Height | 1500 mm | 1270 mm |
| Wheelbase Size | 2730 mm | 2500 mm |
| Fuel Consumption Overall | 12.4 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
