2003 Alpina B3 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Alpina B3. In addition, the cost of maintenance, including insurance, on 2003 Alpina B3 would be higher. At 3,301 cc (6 cylinders), 2003 Alpina B3 is equipped with a bigger engine. In terms of performance, 2003 Alpina B3 (277 HP @ 6300 RPM) has 88 more horse power than 2007 BMW Z4. (189 HP @ 6000 RPM). In normal driving conditions, 2003 Alpina B3 should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina B3 weights approximately 300 kg more than 2007 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Alpina B3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2003 Alpina B3 will offer significantly more control. 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, 2003 Alpina B3 (335 Nm @ 4500 RPM) has 90 more torque (in Nm) than 2007 BMW Z4. (245 Nm @ 3500 RPM). This means 2003 Alpina B3 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4.
Compare all specifications:
| 2003 Alpina B3 | 2007 BMW Z4 | |
| Make | Alpina | BMW |
| Model | B3 | Z4 |
| Year Released | 2003 | 2007 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3301 cc | 2494 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 277 HP | 189 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 335 Nm | 245 Nm |
| Torque RPM | 4500 RPM | 3500 RPM |
| Engine Bore Size | 86.4 mm | 84 mm |
| Engine Stroke Size | 93.9 mm | 75 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 7.2 seconds | 7 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1560 kg | 1260 kg |
| Vehicle Length | 4480 mm | 4100 mm |
| Vehicle Width | 1750 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1310 mm |
| Fuel Consumption Overall | 11.7 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
