1981 Porsche 936 vs. 2007 BMW 645
To start off, 2007 BMW 645 is newer by 26 year(s). Which means there will be less support and parts availability for 1981 Porsche 936. In addition, the cost of maintenance, including insurance, on 1981 Porsche 936 would be higher. At 4,398 cc (8 cylinders), 2007 BMW 645 is equipped with a bigger engine. In terms of performance, 1981 Porsche 936 (632 HP @ 8200 RPM) has 304 more horse power than 2007 BMW 645. (328 HP @ 6100 RPM). In normal driving conditions, 1981 Porsche 936 should accelerate faster than 2007 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 645 weights approximately 915 kg more than 1981 Porsche 936.
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. 2007 BMW 645 has automatic transmission and 1981 Porsche 936 has manual transmission. 1981 Porsche 936 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 645 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1981 Porsche 936 | 2007 BMW 645 | |
| Make | Porsche | BMW |
| Model | 936 | 645 |
| Year Released | 1981 | 2007 |
| Engine Position | Middle | Front |
| Engine Size | 2650 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 632 HP | 328 HP |
| Engine RPM | 8200 RPM | 6100 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 775 kg | 1690 kg |
