2004 BMW Z4 vs. 2006 Subaru Impreza
To start off, 2006 Subaru Impreza is newer by 2 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 2,458 cc (4 cylinders), 2006 Subaru Impreza is equipped with a bigger engine. In terms of performance, 2006 Subaru Impreza (231 HP @ 5600 RPM) has 63 more horse power than 2004 BMW Z4. (168 HP @ 6250 RPM) In normal driving conditions, 2006 Subaru Impreza should accelerate faster than 2004 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Subaru Impreza weights approximately 308 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 2006 Subaru Impreza 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, 2006 Subaru Impreza 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, 2006 Subaru Impreza (319 Nm @ 3600 RPM) has 109 more torque (in Nm) than 2004 BMW Z4. (210 Nm @ 3500 RPM). This means 2006 Subaru Impreza will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW Z4.
Compare all specifications:
| 2004 BMW Z4 | 2006 Subaru Impreza | |
| Make | BMW | Subaru |
| Model | Z4 | Impreza |
| Year Released | 2004 | 2006 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 2458 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 168 HP | 231 HP |
| Engine RPM | 6250 RPM | 5600 RPM |
| Torque | 210 Nm | 319 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Compression Ratio | 10.8:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 220 km/hour | 210 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 5.9 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 | 1633 kg |
| Vehicle Length | 4100 mm | 4470 mm |
| Vehicle Width | 1790 mm | 1750 mm |
| Vehicle Height | 1310 mm | 1450 mm |
| Wheelbase Size | 2500 mm | 2530 mm |
| Fuel Consumption Overall | 8.9 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 55 L | 60 L |
