2006 Alfa Romeo 147 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Alfa Romeo 147. In addition, the cost of maintenance, including insurance, on 2006 Alfa Romeo 147 would be higher. At 2,171 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (168 HP @ 6250 RPM) has 20 more horse power than 2006 Alfa Romeo 147. (148 HP @ 4000 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2006 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2006 Alfa Romeo 147 weights approximately 40 kg more than 2007 BMW Z4.
Because 2007 BMW Z4 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2006 Alfa Romeo 147, being front wheel drive (FWD), will offer much better control with better grip. 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 Alfa Romeo 147 (305 Nm @ 2000 RPM) has 95 more torque (in Nm) than 2007 BMW Z4. (210 Nm @ 3500 RPM). This means 2006 Alfa Romeo 147 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4.
Compare all specifications:
| 2006 Alfa Romeo 147 | 2007 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 147 | Z4 |
| Year Released | 2006 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1909 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 168 HP |
| Engine RPM | 4000 RPM | 6250 RPM |
| Torque | 305 Nm | 210 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Engine Bore Size | 82 mm | 80 mm |
| Engine Stroke Size | 90.4 mm | 72 mm |
| Engine Compression Ratio | 18.0:1 | 10.8:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 208 km/hour | 225 km/hour |
| Acceleration 0-100mph | 8.8 seconds | 7.7 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1365 kg | 1325 kg |
| Vehicle Length | 4230 mm | 4100 mm |
| Vehicle Width | 1740 mm | 1790 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 2550 mm | 2500 mm |
| Fuel Consumption Overall | 5.9 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 60 L | 55 L |
