2005 Alfa Romeo 147 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 147. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 147 would be higher. At 3,199 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (358 HP @ 7900 RPM) has 210 more horse power than 2005 Alfa Romeo 147. (148 HP @ 4000 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2005 Alfa Romeo 147.
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, 2005 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, 2007 BMW Z4 (385 Nm @ 4900 RPM) has 85 more torque (in Nm) than 2005 Alfa Romeo 147. (300 Nm @ 2000 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 147.
Compare all specifications:
| 2005 Alfa Romeo 147 | 2007 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 147 | Z4 |
| Year Released | 2005 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 3199 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 358 HP |
| Engine RPM | 4000 RPM | 7900 RPM |
| Torque | 300 Nm | 385 Nm |
| Torque RPM | 2000 RPM | 4900 RPM |
| Engine Compression Ratio | 18.5:1 | 11.5:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 208 km/hour | 273 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Length | 4180 mm | 4100 mm |
| Vehicle Width | 1740 mm | 1790 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2550 mm | 2500 mm |
