2007 Alfa Romeo 159 vs. 2004 BMW Z4
To start off, 2007 Alfa Romeo 159 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 BMW Z4. In addition, the cost of maintenance, including insurance, on 2004 BMW Z4 would be higher. At 3,193 cc (6 cylinders), 2007 Alfa Romeo 159 is equipped with a bigger engine. In terms of performance, 2007 Alfa Romeo 159 (256 HP @ 6200 RPM) has 31 more horse power than 2004 BMW Z4. (225 HP @ 5900 RPM). In normal driving conditions, 2007 Alfa Romeo 159 should accelerate faster than 2004 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alfa Romeo 159 weights approximately 410 kg more than 2004 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Alfa Romeo 159 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Alfa Romeo 159 (322 Nm @ 4500 RPM) has 22 more torque (in Nm) than 2004 BMW Z4. (300 Nm @ 3500 RPM). This means 2007 Alfa Romeo 159 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW Z4.
Compare all specifications:
| 2007 Alfa Romeo 159 | 2004 BMW Z4 | |
| Make | Alfa Romeo | BMW |
| Model | 159 | Z4 |
| Year Released | 2007 | 2004 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3193 cc | 2983 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 256 HP | 225 HP |
| Engine RPM | 6200 RPM | 5900 RPM |
| Torque | 322 Nm | 300 Nm |
| Torque RPM | 4500 RPM | 3500 RPM |
| Engine Compression Ratio | 11.3:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 237 km/hour | 245 km/hour |
| Acceleration 0-100mph | 7.2 seconds | 5.9 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1805 kg | 1395 kg |
| Vehicle Length | 4670 mm | 4100 mm |
| Vehicle Width | 1840 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1310 mm |
| Wheelbase Size | 2710 mm | 2500 mm |
| Fuel Consumption Overall | 11.6 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
