1975 Bitter Diplomat vs. 1991 BMW 518
To start off, 1991 BMW 518 is newer by 16 year(s). Which means there will be less support and parts availability for 1975 Bitter Diplomat. In addition, the cost of maintenance, including insurance, on 1975 Bitter Diplomat would be higher. At 5,353 cc (8 cylinders), 1975 Bitter Diplomat is equipped with a bigger engine. In terms of performance, 1975 Bitter Diplomat (227 HP @ 4700 RPM) has 113 more horse power than 1991 BMW 518. (114 HP @ 5500 RPM). In normal driving conditions, 1975 Bitter Diplomat should accelerate faster than 1991 BMW 518. With that said, vehicle weight also plays an important factor in acceleration. 1975 Bitter Diplomat weights approximately 520 kg more than 1991 BMW 518. 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, 1975 Bitter Diplomat (419 Nm @ 3100 RPM) has 254 more torque (in Nm) than 1991 BMW 518. (165 Nm @ 4250 RPM). This means 1975 Bitter Diplomat will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 518.
Compare all specifications:
| 1975 Bitter Diplomat | 1991 BMW 518 | |
| Make | Bitter | BMW |
| Model | Diplomat | 518 |
| Year Released | 1975 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 5353 cc | 1766 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 227 HP | 114 HP |
| Engine RPM | 4700 RPM | 5500 RPM |
| Torque | 419 Nm | 165 Nm |
| Torque RPM | 3100 RPM | 4250 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Vehicle Weight | 1680 kg | 1160 kg |
| Vehicle Length | 4860 mm | 4730 mm |
| Vehicle Width | 1850 mm | 1760 mm |
| Vehicle Height | 1290 mm | 1420 mm |
| Wheelbase Size | 2690 mm | 2770 mm |
