2009 BMW M6 vs. 1991 Porsche 928
To start off, 2009 BMW M6 is newer by 18 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, 2009 BMW M6 (500 HP @ 7750 RPM) has 155 more horse power than 1991 Porsche 928. (345 HP @ 5700 RPM). In normal driving conditions, 2009 BMW M6 should accelerate faster than 1991 Porsche 928. With that said, vehicle weight also plays an important factor in acceleration. 1991 Porsche 928 weights approximately 75 kg more than 2009 BMW M6.
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, 2009 BMW M6 (519 Nm @ 6100 RPM) has 19 more torque (in Nm) than 1991 Porsche 928. (500 Nm @ 4250 RPM). This means 2009 BMW M6 will have an easier job in driving up hills or pulling heavy equipment than 1991 Porsche 928.
Compare all specifications:
| 2009 BMW M6 | 1991 Porsche 928 | |
| Make | BMW | Porsche |
| Model | M6 | 928 |
| Year Released | 2009 | 1991 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4999 cc | 5397 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 500 HP | 345 HP |
| Engine RPM | 7750 RPM | 5700 RPM |
| Torque | 519 Nm | 500 Nm |
| Torque RPM | 6100 RPM | 4250 RPM |
| Engine Compression Ratio | 12.0:1 | 10.4:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1525 kg | 1600 kg |
| Vehicle Length | 4880 mm | 4450 mm |
| Vehicle Width | 1860 mm | 1860 mm |
| Vehicle Height | 1380 mm | 1290 mm |
| Wheelbase Size | 2790 mm | 2510 mm |
| Fuel Tank Capacity | 70 L | 86 L |
