1968 Opel Diplomat vs. 1991 Vector Wiegert
To start off, 1991 Vector Wiegert is newer by 23 year(s). Which means there will be less support and parts availability for 1968 Opel Diplomat. In addition, the cost of maintenance, including insurance, on 1968 Opel Diplomat would be higher. At 5,973 cc (8 cylinders), 1991 Vector Wiegert is equipped with a bigger engine. In terms of performance, 1991 Vector Wiegert (644 HP) has 417 more horse power than 1968 Opel Diplomat. (227 HP) In normal driving conditions, 1991 Vector Wiegert should accelerate faster than 1968 Opel Diplomat. With that said, vehicle weight also plays an important factor in acceleration. 1968 Opel Diplomat weights approximately 140 kg more than 1991 Vector Wiegert.
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, 1991 Vector Wiegert (854 Nm) has 427 more torque (in Nm) than 1968 Opel Diplomat. (427 Nm). This means 1991 Vector Wiegert will have an easier job in driving up hills or pulling heavy equipment than 1968 Opel Diplomat.
Compare all specifications:
| 1968 Opel Diplomat | 1991 Vector Wiegert | |
| Make | Opel | Vector |
| Model | Diplomat | Wiegert |
| Year Released | 1968 | 1991 |
| Engine Position | Front | Middle |
| Engine Size | 5354 cc | 5973 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 227 HP | 644 HP |
| Torque | 427 Nm | 854 Nm |
| Engine Bore Size | 101.6 mm | 101.6 mm |
| Engine Stroke Size | 82.6 mm | 91.4 mm |
| Engine Compression Ratio | 10.5:1 | 8.0:1 |
| Top Speed | 202 km/hour | 352 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1690 kg | 1550 kg |
| Vehicle Length | 4960 mm | 4380 mm |
| Vehicle Width | 1910 mm | 2090 mm |
| Vehicle Height | 1450 mm | 1070 mm |
| Wheelbase Size | 2850 mm | 2620 mm |
