2008 Alfa Romeo 159 vs. 2006 BMW Z4
To start off, 2008 Alfa Romeo 159 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 3,195 cc (6 cylinders), 2008 Alfa Romeo 159 is equipped with a bigger engine. In terms of performance, 2008 Alfa Romeo 159 (256 HP @ 6200 RPM) has 1 more horse power than 2006 BMW Z4. (255 HP @ 6600 RPM). In normal driving conditions, 2008 Alfa Romeo 159 should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 30 kg more than 2008 Alfa Romeo 159.
Because 2008 Alfa Romeo 159 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 Alfa Romeo 159 (322 Nm @ 4500 RPM) has 24 more torque (in Nm) than 2006 BMW Z4. (298 Nm @ 2750 RPM). This means 2008 Alfa Romeo 159 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2008 Alfa Romeo 159 | 2006 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 159 | Z4 |
| Year Released | 2008 | 2006 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3195 cc | 2999 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 256 HP | 255 HP |
| Engine RPM | 6200 RPM | 6600 RPM |
| Torque | 322 Nm | 298 Nm |
| Torque RPM | 4500 RPM | 2750 RPM |
| Engine Compression Ratio | 11.3:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1805 kg | 1835 kg |
| Vehicle Length | 4670 mm | 4100 mm |
| Vehicle Width | 1840 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1270 mm |
| Wheelbase Size | 2710 mm | 2500 mm |
| Fuel Consumption Overall | 11.6 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
