2006 BMW Z4 vs. 1991 Porsche 928
To start off, 2006 BMW Z4 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Porsche 928. In addition, the cost of maintenance, including insurance, on 1991 Porsche 928 would be higher. At 5,397 cc (8 cylinders), 1991 Porsche 928 is equipped with a bigger engine. In terms of performance, 1991 Porsche 928 (345 HP @ 5700 RPM) has 160 more horse power than 2006 BMW Z4. (185 HP @ 6000 RPM) In normal driving conditions, 1991 Porsche 928 should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 1991 Porsche 928 weights approximately 270 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.
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, 1991 Porsche 928 (500 Nm @ 4250 RPM) has 263 more torque (in Nm) than 2006 BMW Z4. (237 Nm @ 3500 RPM). This means 1991 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
2006 BMW Z4 | 1991 Porsche 928 | |
Make | BMW | Porsche |
Model | Z4 | 928 |
Year Released | 2006 | 1991 |
Body Type | Convertible | Coupe |
Engine Position | Front | Front |
Engine Size | 2501 cc | 5397 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Horse Power | 185 HP | 345 HP |
Engine RPM | 6000 RPM | 5700 RPM |
Torque | 237 Nm | 500 Nm |
Torque RPM | 3500 RPM | 4250 RPM |
Engine Bore Size | 84.1 mm | 100.1 mm |
Engine Stroke Size | 74.9 mm | 85.9 mm |
Drive Type | Rear | Rear |
Transmission Type | Manual | Manual |
Number of Seats | 2 seats | 4 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1330 kg | 1600 kg |
Vehicle Length | 4100 mm | 4450 mm |
Vehicle Width | 1790 mm | 1860 mm |
Vehicle Height | 1300 mm | 1290 mm |
Wheelbase Size | 2500 mm | 2510 mm |
Fuel Tank Capacity | 55 L | 86 L |