1986 BMW 730 vs. 1987 BMW M6
To start off, 1987 BMW M6 is newer by 1 year(s). Which means there will be less support and parts availability for 1986 BMW 730. In addition, the cost of maintenance, including insurance, on 1986 BMW 730 would be higher. At 3,453 cc (6 cylinders), 1987 BMW M6 is equipped with a bigger engine. In terms of performance, 1987 BMW M6 (282 HP @ 6500 RPM) has 85 more horse power than 1986 BMW 730. (197 HP @ 5800 RPM) In normal driving conditions, 1987 BMW M6 should accelerate faster than 1986 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 1986 BMW 730 weights approximately 95 kg more than 1987 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, 1987 BMW M6 (334 Nm @ 4500 RPM) has 59 more torque (in Nm) than 1986 BMW 730. (275 Nm @ 4000 RPM). This means 1987 BMW M6 will have an easier job in driving up hills or pulling heavy equipment than 1986 BMW 730.
Compare all specifications:
| 1986 BMW 730 | 1987 BMW M6 | |
| Make | BMW | BMW |
| Model | 730 | M6 |
| Year Released | 1986 | 1987 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 3453 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 197 HP | 282 HP |
| Engine RPM | 5800 RPM | 6500 RPM |
| Torque | 275 Nm | 334 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Engine Bore Size | 89 mm | 93.4 mm |
| Engine Stroke Size | 80 mm | 84 mm |
| Engine Compression Ratio | 9.2:1 | 10.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1600 kg | 1505 kg |
| Vehicle Length | 4920 mm | 4760 mm |
| Vehicle Width | 1850 mm | 1730 mm |
| Vehicle Height | 1420 mm | 1360 mm |
| Wheelbase Size | 2800 mm | 2630 mm |
