1978 BMW 730 vs. 1968 Opel Diplomat
To start off, 1978 BMW 730 is newer by 10 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 42 more horse power than 1978 BMW 730. (185 HP @ 5800 RPM) In normal driving conditions, 1968 Opel Diplomat should accelerate faster than 1978 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 1968 Opel Diplomat weights approximately 180 kg more than 1978 BMW 730. 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, 1968 Opel Diplomat (427 Nm @ 3000 RPM) has 197 more torque (in Nm) than 1978 BMW 730. (230 Nm @ 4000 RPM). This means 1968 Opel Diplomat will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 730. 1968 Opel Diplomat has automatic transmission and 1978 BMW 730 has manual transmission. 1978 BMW 730 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:
1978 BMW 730 | 1968 Opel Diplomat | |
Make | BMW | Opel |
Model | 730 | Diplomat |
Year Released | 1978 | 1968 |
Engine Position | Front | Front |
Engine Size | 2788 cc | 5354 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 185 HP | 227 HP |
Engine RPM | 5800 RPM | 4700 RPM |
Torque | 230 Nm | 427 Nm |
Torque RPM | 4000 RPM | 3000 RPM |
Engine Compression Ratio | 10.0:1 | 10.5:1 |
Drive Type | Rear | Rear |
Transmission Type | Manual | Automatic |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Weight | 1510 kg | 1690 kg |
Vehicle Length | 4870 mm | 4960 mm |
Vehicle Width | 1810 mm | 1910 mm |
Vehicle Height | 1440 mm | 1450 mm |
Wheelbase Size | 2810 mm | 2850 mm |