1968 Opel Diplomat vs. 1988 Opel Vectra
To start off, 1988 Opel Vectra is newer by 20 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 5,354 cc (8 cylinders), 1968 Opel Diplomat is equipped with a bigger engine. In terms of performance, 1968 Opel Diplomat (227 HP @ 4700 RPM) has 154 more horse power than 1988 Opel Vectra. (73 HP @ 5600 RPM). In normal driving conditions, 1968 Opel Diplomat should accelerate faster than 1988 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 1968 Opel Diplomat weights approximately 685 kg more than 1988 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1968 Opel Diplomat is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1968 Opel Diplomat. However, in wet, icy, snow, or gravel driving conditions, 1988 Opel Vectra, being front wheel drive (FWD), will offer much better control with better grip. 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, 1968 Opel Diplomat (427 Nm @ 3000 RPM) has 319 more torque (in Nm) than 1988 Opel Vectra. (108 Nm @ 3000 RPM). This means 1968 Opel Diplomat will have an easier job in driving up hills or pulling heavy equipment than 1988 Opel Vectra. 1968 Opel Diplomat has automatic transmission and 1988 Opel Vectra has manual transmission. 1988 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1968 Opel Diplomat will be easier to drive especially in heavy traffic.
Compare all specifications:
1968 Opel Diplomat | 1988 Opel Vectra | |
Make | Opel | Opel |
Model | Diplomat | Vectra |
Year Released | 1968 | 1988 |
Engine Position | Front | Front |
Engine Size | 5354 cc | 1396 cc |
Engine Cylinders | 8 cylinders | 4 cylinders |
Engine Type | V | in-line |
Horse Power | 227 HP | 73 HP |
Engine RPM | 4700 RPM | 5600 RPM |
Torque | 427 Nm | 108 Nm |
Torque RPM | 3000 RPM | 3000 RPM |
Engine Bore Size | 101.6 mm | 77.8 mm |
Engine Stroke Size | 82.6 mm | 73.4 mm |
Engine Compression Ratio | 10.5:1 | 9.4:1 |
Top Speed | 202 km/hour | 173 km/hour |
Drive Type | Rear | Front |
Transmission Type | Automatic | Manual |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 5 doors |
Vehicle Weight | 1690 kg | 1005 kg |
Vehicle Length | 4960 mm | 4360 mm |
Vehicle Width | 1910 mm | 1710 mm |
Vehicle Height | 1450 mm | 1400 mm |
Wheelbase Size | 2850 mm | 2600 mm |
Fuel Tank Capacity | 80 L | 61 L |