2005 Alpina B3 vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 1 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 3,346 cc (6 cylinders), 2005 Alpina B3 is equipped with a bigger engine. In terms of performance, 2005 Alpina B3 (301 HP @ 6300 RPM) has 112 more horse power than 2006 BMW Z4. (189 HP @ 6000 RPM). In normal driving conditions, 2005 Alpina B3 should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Alpina B3 weights approximately 615 kg more than 2006 BMW Z4. 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, 2005 Alpina B3 (362 Nm @ 4800 RPM) has 117 more torque (in Nm) than 2006 BMW Z4. (245 Nm @ 3500 RPM). This means 2005 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2005 Alpina B3 | 2006 BMW Z4 | |
| Make | Alpina | BMW |
| Model | B3 | Z4 |
| Year Released | 2005 | 2006 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2492 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 189 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 362 Nm | 245 Nm |
| Torque RPM | 4800 RPM | 3500 RPM |
| Engine Bore Size | 87.1 mm | 84 mm |
| Engine Stroke Size | 93.9 mm | 75 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 5.8 seconds | 7 seconds |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1950 kg | 1335 kg |
| Vehicle Length | 4480 mm | 4100 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1310 mm |
| Wheelbase Size | 2730 mm | 2500 mm |
| Fuel Consumption Overall | 11.1 L/100km | 9 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
