1978 Bitter Diplomat vs. 1981 Porsche 928
To start off, 1981 Porsche 928 is newer by 3 year(s). Which means there will be less support and parts availability for 1978 Bitter Diplomat. In addition, the cost of maintenance, including insurance, on 1978 Bitter Diplomat would be higher. At 5,354 cc (8 cylinders), 1978 Bitter Diplomat is equipped with a bigger engine. In terms of performance, 1981 Porsche 928 (238 HP @ 5250 RPM) has 11 more horse power than 1978 Bitter Diplomat. (227 HP @ 4700 RPM) In normal driving conditions, 1981 Porsche 928 should accelerate faster than 1978 Bitter Diplomat. With that said, vehicle weight also plays an important factor in acceleration. 1978 Bitter Diplomat weights approximately 230 kg more than 1981 Porsche 928.
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, 1978 Bitter Diplomat (419 Nm @ 3100 RPM) has 63 more torque (in Nm) than 1981 Porsche 928. (356 Nm @ 3600 RPM). This means 1978 Bitter Diplomat will have an easier job in driving up hills or pulling heavy equipment than 1981 Porsche 928.
Compare all specifications:
| 1978 Bitter Diplomat | 1981 Porsche 928 | |
| Make | Bitter | Porsche |
| Model | Diplomat | 928 |
| Year Released | 1978 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 5354 cc | 4472 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 227 HP | 238 HP |
| Engine RPM | 4700 RPM | 5250 RPM |
| Torque | 419 Nm | 356 Nm |
| Torque RPM | 3100 RPM | 3600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Vehicle Weight | 1680 kg | 1450 kg |
| Vehicle Length | 4860 mm | 4450 mm |
| Vehicle Width | 1850 mm | 1840 mm |
| Vehicle Height | 1290 mm | 1320 mm |
| Wheelbase Size | 2690 mm | 2510 mm |
