2008 BMW 650 vs. 1991 Porsche 928
To start off, 2008 BMW 650 is newer by 17 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 4,799 cc (8 cylinders), 2008 BMW 650 is equipped with a bigger engine. In terms of performance, 2008 BMW 650 (360 HP @ 6300 RPM) has 54 more horse power than 1991 Porsche 928. (306 HP @ 5900 RPM). In normal driving conditions, 2008 BMW 650 should accelerate faster than 1991 Porsche 928. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 650 weights approximately 110 kg more than 1991 Porsche 928. 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, 2008 BMW 650 (488 Nm @ 3400 RPM) has 80 more torque (in Nm) than 1991 Porsche 928. (408 Nm @ 4100 RPM). This means 2008 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 928.
Compare all specifications:
| 2008 BMW 650 | 1991 Porsche 928 | |
| Make | BMW | Porsche |
| Model | 650 | 928 |
| Year Released | 2008 | 1991 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 4663 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 360 HP | 306 HP |
| Engine RPM | 6300 RPM | 5900 RPM |
| Torque | 488 Nm | 408 Nm |
| Torque RPM | 3400 RPM | 4100 RPM |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 245 km/hour | 319 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1640 kg | 1530 kg |
| Vehicle Length | 5050 mm | 4530 mm |
| Vehicle Width | 1860 mm | 2060 mm |
| Vehicle Height | 1480 mm | 1290 mm |
| Wheelbase Size | 2790 mm | 2510 mm |
| Fuel Tank Capacity | 70 L | 76 L |
