2003 Alfa Romeo 147 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 Alfa Romeo 147. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 147 would be higher. At 2,996 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (255 HP @ 6600 RPM) has 151 more horse power than 2003 Alfa Romeo 147. (104 HP @ 5600 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2003 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 133 kg more than 2003 Alfa Romeo 147. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2003 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 (298 Nm @ 2750 RPM) has 158 more torque (in Nm) than 2003 Alfa Romeo 147. (140 Nm @ 4200 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 147.
Compare all specifications:
| 2003 Alfa Romeo 147 | 2007 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 147 | Z4 |
| Year Released | 2003 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 2996 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 104 HP | 255 HP |
| Engine RPM | 5600 RPM | 6600 RPM |
| Torque | 140 Nm | 298 Nm |
| Torque RPM | 4200 RPM | 2750 RPM |
| Engine Compression Ratio | 10.3:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 180 km/hour | 250 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 Weight | 1265 kg | 1398 kg |
| Vehicle Length | 4180 mm | 4100 mm |
| Vehicle Width | 1740 mm | 1790 mm |
| Vehicle Height | 1450 mm | 1300 mm |
| Wheelbase Size | 2550 mm | 2500 mm |
| Fuel Consumption Overall | 8.1 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
