1975 BMW 320 vs. 2009 BMW 650
To start off, 2009 BMW 650 is newer by 34 year(s). Which means there will be less support and parts availability for 1975 BMW 320. In addition, the cost of maintenance, including insurance, on 1975 BMW 320 would be higher. At 4,799 cc (8 cylinders), 2009 BMW 650 is equipped with a bigger engine. In terms of performance, 2009 BMW 650 (362 HP @ 6300 RPM) has 253 more horse power than 1975 BMW 320. (109 HP @ 5800 RPM) In normal driving conditions, 2009 BMW 650 should accelerate faster than 1975 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 650 weights approximately 405 kg more than 1975 BMW 320. 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, 2009 BMW 650 (490 Nm @ 3600 RPM) has 333 more torque (in Nm) than 1975 BMW 320. (157 Nm @ 3700 RPM). This means 2009 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 1975 BMW 320.
Compare all specifications:
| 1975 BMW 320 | 2009 BMW 650 | |
| Make | BMW | BMW |
| Model | 320 | 650 |
| Year Released | 1975 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1990 cc | 4799 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 109 HP | 362 HP |
| Engine RPM | 5800 RPM | 6300 RPM |
| Torque | 157 Nm | 490 Nm |
| Torque RPM | 3700 RPM | 3600 RPM |
| Engine Compression Ratio | 8.1:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1120 kg | 1525 kg |
| Vehicle Length | 4360 mm | 4830 mm |
| Vehicle Width | 1620 mm | 1380 mm |
| Vehicle Height | 1350 mm | 1860 mm |
| Wheelbase Size | 2580 mm | 2790 mm |
| Fuel Tank Capacity | 52 L | 70 L |
