2006 BMW Z4 vs. 2003 Subaru Legacy
To start off, 2006 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Subaru Legacy. In addition, the cost of maintenance, including insurance, on 2003 Subaru Legacy would be higher. At 2,501 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2003 Subaru Legacy (187 HP @ 7100 RPM) has 2 more horse power than 2006 BMW Z4. (185 HP @ 6000 RPM) In normal driving conditions, 2003 Subaru Legacy should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Subaru Legacy weights approximately 10 kg more than 2006 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Subaru Legacy 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, 2003 Subaru Legacy 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 BMW Z4 (237 Nm @ 3500 RPM) has 41 more torque (in Nm) than 2003 Subaru Legacy. (196 Nm @ 4400 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Subaru Legacy.
Compare all specifications:
| 2006 BMW Z4 | 2003 Subaru Legacy | |
| Make | BMW | Subaru |
| Model | Z4 | Legacy |
| Year Released | 2006 | 2003 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2501 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 185 HP | 187 HP |
| Engine RPM | 6000 RPM | 7100 RPM |
| Torque | 237 Nm | 196 Nm |
| Torque RPM | 3500 RPM | 4400 RPM |
| Engine Bore Size | 84.1 mm | 92 mm |
| Engine Stroke Size | 74.9 mm | 75 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1330 kg | 1340 kg |
| Vehicle Length | 4100 mm | 4640 mm |
| Vehicle Width | 1790 mm | 1740 mm |
| Vehicle Height | 1300 mm | 1430 mm |
| Wheelbase Size | 2500 mm | 2680 mm |
| Fuel Tank Capacity | 55 L | 64 L |
