2003 Alfa Romeo 147 vs. 2005 BMW Z4
To start off, 2005 BMW Z4 is newer by 2 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 3,178 cc (6 cylinders), 2003 Alfa Romeo 147 is equipped with a bigger engine. In terms of performance, 2003 Alfa Romeo 147 (247 HP @ 6200 RPM) has 106 more horse power than 2005 BMW Z4. (141 HP @ 6200 RPM). In normal driving conditions, 2003 Alfa Romeo 147 should accelerate faster than 2005 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW Z4 weights approximately 60 kg more than 2003 Alfa Romeo 147.
Because 2005 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 2005 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, 2003 Alfa Romeo 147 (300 Nm @ 4800 RPM) has 100 more torque (in Nm) than 2005 BMW Z4. (200 Nm @ 3600 RPM). This means 2003 Alfa Romeo 147 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW Z4.
Compare all specifications:
| 2003 Alfa Romeo 147 | 2005 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 147 | Z4 |
| Year Released | 2003 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 3178 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 247 HP | 141 HP |
| Engine RPM | 6200 RPM | 6200 RPM |
| Torque | 300 Nm | 200 Nm |
| Torque RPM | 4800 RPM | 3600 RPM |
| Engine Bore Size | 93 mm | 84 mm |
| Engine Stroke Size | 78 mm | 90 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 246 km/hour | 220 km/hour |
| Acceleration 0-100mph | 6.2 seconds | 8.2 seconds |
| 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 | 1325 kg |
| Vehicle Length | 4180 mm | 4100 mm |
| Vehicle Width | 1740 mm | 1790 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 2710 mm | 2500 mm |
| Fuel Consumption Overall | 7.5 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 63 L | 55 L |
