2002 Alfa Romeo 147 vs. 2005 BMW Z4
To start off, 2005 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Alfa Romeo 147. In addition, the cost of maintenance, including insurance, on 2002 Alfa Romeo 147 would be higher. At 2,171 cc (6 cylinders), 2005 BMW Z4 is equipped with a bigger engine. In terms of performance, 2005 BMW Z4 (168 HP @ 6250 RPM) has 64 more horse power than 2002 Alfa Romeo 147. (104 HP @ 5600 RPM) In normal driving conditions, 2005 BMW Z4 should accelerate faster than 2002 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW Z4 weights approximately 60 kg more than 2002 Alfa Romeo 147. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2002 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, 2005 BMW Z4 (210 Nm @ 3500 RPM) has 70 more torque (in Nm) than 2002 Alfa Romeo 147. (140 Nm @ 4200 RPM). This means 2005 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2002 Alfa Romeo 147. 2005 BMW Z4 has automatic transmission and 2002 Alfa Romeo 147 has manual transmission. 2002 Alfa Romeo 147 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2002 Alfa Romeo 147 | 2005 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 147 | Z4 |
| Year Released | 2002 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 104 HP | 168 HP |
| Engine RPM | 5600 RPM | 6250 RPM |
| Torque | 140 Nm | 210 Nm |
| Torque RPM | 4200 RPM | 3500 RPM |
| Engine Bore Size | 82 mm | 80 mm |
| Engine Stroke Size | 75.7 mm | 72 mm |
| Engine Compression Ratio | 10.3:1 | 10.8:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 185 km/hour | 225 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| 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 | 2550 mm | 2500 mm |
| Fuel Consumption Overall | 8.3 L/100km | 8.9 L/100km |
