2005 BMW Z4 vs. 2012 Alfa Romeo 159
To start off, 2012 Alfa Romeo 159 is newer by 7 year(s). Which means there will be less support and parts availability for 2005 BMW Z4. In addition, the cost of maintenance, including insurance, on 2005 BMW Z4 would be higher. At 3,195 cc (6 cylinders), 2012 Alfa Romeo 159 is equipped with a bigger engine. In terms of performance, 2012 Alfa Romeo 159 (256 HP @ 6200 RPM) has 88 more horse power than 2005 BMW Z4. (168 HP @ 6250 RPM) In normal driving conditions, 2012 Alfa Romeo 159 should accelerate faster than 2005 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2012 Alfa Romeo 159 weights approximately 523 kg more than 2005 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 Alfa Romeo 159 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2012 Alfa Romeo 159 will offer significantly more control. 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, 2012 Alfa Romeo 159 (322 Nm @ 4500 RPM) has 112 more torque (in Nm) than 2005 BMW Z4. (210 Nm @ 3500 RPM). This means 2012 Alfa Romeo 159 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW Z4.
Compare all specifications:
| 2005 BMW Z4 | 2012 Alfa Romeo 159 | |
| Make | BMW | Alfa Romeo |
| Model | Z4 | 159 |
| Year Released | 2005 | 2012 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 3195 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 256 HP |
| Engine RPM | 6250 RPM | 6200 RPM |
| Torque | 210 Nm | 322 Nm |
| Torque RPM | 3500 RPM | 4500 RPM |
| Engine Compression Ratio | 10.8:1 | 11.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 225 km/hour | 240 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 7 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1325 kg | 1848 kg |
| Vehicle Length | 4100 mm | 4670 mm |
| Vehicle Width | 1790 mm | 1830 mm |
| Vehicle Height | 1310 mm | 1420 mm |
| Wheelbase Size | 2500 mm | 2710 mm |
| Fuel Consumption Overall | 8.9 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
