1979 BMW 728 vs. 2006 BMW 650
To start off, 2006 BMW 650 is newer by 27 year(s). Which means there will be less support and parts availability for 1979 BMW 728. In addition, the cost of maintenance, including insurance, on 1979 BMW 728 would be higher. At 4,799 cc (8 cylinders), 2006 BMW 650 is equipped with a bigger engine. In terms of performance, 2006 BMW 650 (360 HP @ 6300 RPM) has 179 more horse power than 1979 BMW 728. (181 HP @ 5800 RPM) In normal driving conditions, 2006 BMW 650 should accelerate faster than 1979 BMW 728. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 650 weights approximately 260 kg more than 1979 BMW 728. 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, 2006 BMW 650 (488 Nm @ 3400 RPM) has 248 more torque (in Nm) than 1979 BMW 728. (240 Nm @ 4200 RPM). This means 2006 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 1979 BMW 728.
Compare all specifications:
| 1979 BMW 728 | 2006 BMW 650 | |
| Make | BMW | BMW |
| Model | 728 | 650 |
| Year Released | 1979 | 2006 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2788 cc | 4799 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 181 HP | 360 HP |
| Engine RPM | 5800 RPM | 6300 RPM |
| Torque | 240 Nm | 488 Nm |
| Torque RPM | 4200 RPM | 3400 RPM |
| Engine Bore Size | 86 mm | 93 mm |
| Engine Stroke Size | 80 mm | 88.4 mm |
| Engine Compression Ratio | 9.3:1 | 10.5:1 |
| Top Speed | 201 km/hour | 241 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1470 kg | 1730 kg |
| Vehicle Length | 4870 mm | 4840 mm |
| Vehicle Width | 1810 mm | 1860 mm |
| Vehicle Height | 1440 mm | 1380 mm |
| Wheelbase Size | 2800 mm | 2790 mm |
| Fuel Tank Capacity | 100 L | 67 L |
