2005 BMW Z4 vs. 1973 Porsche 911
To start off, 2005 BMW Z4 is newer by 32 year(s). Which means there will be less support and parts availability for 1973 Porsche 911. In addition, the cost of maintenance, including insurance, on 1973 Porsche 911 would be higher. At 2,994 cc (6 cylinders), 1973 Porsche 911 is equipped with a bigger engine. In terms of performance, 1973 Porsche 911 (226 HP @ 6200 RPM) has 58 more horse power than 2005 BMW Z4. (168 HP @ 6250 RPM) In normal driving conditions, 1973 Porsche 911 should accelerate faster than 2005 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW Z4 weights approximately 425 kg more than 1973 Porsche 911.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1973 Porsche 911 (275 Nm @ 5000 RPM) has 65 more torque (in Nm) than 2005 BMW Z4. (210 Nm @ 3500 RPM). This means 1973 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW Z4.
Compare all specifications:
| 2005 BMW Z4 | 1973 Porsche 911 | |
| Make | BMW | Porsche |
| Model | Z4 | 911 |
| Year Released | 2005 | 1973 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2171 cc | 2994 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 168 HP | 226 HP |
| Engine RPM | 6250 RPM | 6200 RPM |
| Torque | 210 Nm | 275 Nm |
| Torque RPM | 3500 RPM | 5000 RPM |
| Engine Bore Size | 80 mm | 95 mm |
| Engine Stroke Size | 72 mm | 70.4 mm |
| Engine Compression Ratio | 10.8:1 | 8.5:1 |
| Top Speed | 225 km/hour | 245 km/hour |
| Acceleration 0-100mph | 7.7 seconds | 5.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1325 kg | 900 kg |
| Vehicle Length | 4100 mm | 4130 mm |
| Vehicle Width | 1790 mm | 1690 mm |
| Vehicle Height | 1310 mm | 1330 mm |
| Wheelbase Size | 2500 mm | 2270 mm |
| Fuel Tank Capacity | 55 L | 80 L |
