2007 Alfa Romeo 159 vs. 2009 BMW Z4
To start off, 2009 BMW Z4 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Alfa Romeo 159. In addition, the cost of maintenance, including insurance, on 2007 Alfa Romeo 159 would be higher. At 3,244 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (338 HP @ 7900 RPM) has 140 more horse power than 2007 Alfa Romeo 159. (198 HP @ 4000 RPM) In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2007 Alfa Romeo 159. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alfa Romeo 159 weights approximately 260 kg more than 2009 BMW Z4.
Because 2009 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 2009 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2007 Alfa Romeo 159, 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, 2007 Alfa Romeo 159 (400 Nm @ 2000 RPM) has 35 more torque (in Nm) than 2009 BMW Z4. (365 Nm @ 4900 RPM). This means 2007 Alfa Romeo 159 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4.
Compare all specifications:
| 2007 Alfa Romeo 159 | 2009 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 159 | Z4 |
| Year Released | 2007 | 2009 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2387 cc | 3244 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 198 HP | 338 HP |
| Engine RPM | 4000 RPM | 7900 RPM |
| Torque | 400 Nm | 365 Nm |
| Torque RPM | 2000 RPM | 4900 RPM |
| Engine Bore Size | 82 mm | 87 mm |
| Engine Stroke Size | 90.4 mm | 91 mm |
| Engine Compression Ratio | 17.0:1 | 11.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 226 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8.6 seconds | 5 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1755 kg | 1495 kg |
| Vehicle Length | 4670 mm | 4120 mm |
| Vehicle Width | 1840 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1290 mm |
| Wheelbase Size | 2710 mm | 2500 mm |
| Fuel Consumption Overall | 7 L/100km | 12.1 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
