2006 BMW Z4 vs. 2007 Alpina D3
To start off, 2007 Alpina D3 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 3,346 cc (6 cylinders), 2007 Alpina D3 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (338 HP @ 7900 RPM) has 37 more horse power than 2007 Alpina D3. (301 HP @ 6300 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2007 Alpina D3. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 35 kg more than 2007 Alpina D3. 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, 2006 BMW Z4 (365 Nm @ 4900 RPM) has 3 more torque (in Nm) than 2007 Alpina D3. (362 Nm @ 4800 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Alpina D3. 2007 Alpina D3 has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Alpina D3 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2007 Alpina D3 | |
| Make | BMW | Alpina |
| Model | Z4 | D3 |
| Year Released | 2006 | 2007 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 3346 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 301 HP |
| Engine RPM | 7900 RPM | 6300 RPM |
| Torque | 365 Nm | 362 Nm |
| Torque RPM | 4900 RPM | 4800 RPM |
| Engine Compression Ratio | 11.5:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 245 km/hour | 271 km/hour |
| Acceleration 0-100mph | 5 seconds | 5.4 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1450 kg |
| Vehicle Length | 4120 mm | 4490 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1310 mm | 1370 mm |
| Wheelbase Size | 2500 mm | 2730 mm |
| Fuel Consumption Overall | 12.1 L/100km | 11 L/100km |
| Fuel Tank Capacity | 55 L | 63 L |
