2003 Alfa Romeo 156 vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 2,979 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (229 HP @ 5900 RPM) has 91 more horse power than 2003 Alfa Romeo 156. (138 HP @ 6500 RPM) In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 365 kg more than 2003 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 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 2006 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2003 Alfa Romeo 156, 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 BMW Z4 (300 Nm @ 3500 RPM) has 137 more torque (in Nm) than 2003 Alfa Romeo 156. (163 Nm @ 3900 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
2003 Alfa Romeo 156 | 2006 BMW Z4 | |
Make | Alfa Romeo | BMW |
Model | 156 | Z4 |
Year Released | 2003 | 2006 |
Body Type | Sedan | Convertible |
Engine Position | Front | Front |
Engine Size | 1746 cc | 2979 cc |
Engine Cylinders | 4 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Horse Power | 138 HP | 229 HP |
Engine RPM | 6500 RPM | 5900 RPM |
Torque | 163 Nm | 300 Nm |
Torque RPM | 3900 RPM | 3500 RPM |
Engine Bore Size | 82 mm | 84 mm |
Engine Stroke Size | 82.7 mm | 90 mm |
Engine Compression Ratio | 10.3:1 | 10.2:1 |
Top Speed | 208 km/hour | 250 km/hour |
Acceleration 0-100mph | 9.4 seconds | 5.9 seconds |
Drive Type | Front | Rear |
Transmission Type | Manual | Manual |
Number of Seats | 5 seats | 2 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1265 kg | 1630 kg |
Vehicle Length | 4440 mm | 4570 mm |
Vehicle Width | 1750 mm | 1790 mm |
Vehicle Height | 1440 mm | 1680 mm |
Wheelbase Size | 2710 mm | 2500 mm |
Fuel Consumption Overall | 8.5 L/100km | 9.1 L/100km |
Fuel Tank Capacity | 63 L | 55 L |