1968 Opel Diplomat vs. 1973 Toyota Corona
To start off, 1973 Toyota Corona is newer by 5 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 138 more horse power than 1973 Toyota Corona. (89 HP @ 5000 RPM). In normal driving conditions, 1968 Opel Diplomat should accelerate faster than 1973 Toyota Corona. With that said, vehicle weight also plays an important factor in acceleration. 1968 Opel Diplomat weights approximately 580 kg more than 1973 Toyota Corona. 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 283 more torque (in Nm) than 1973 Toyota Corona. (144 Nm @ 3600 RPM). This means 1968 Opel Diplomat will have an easier job in driving up hills or pulling heavy equipment than 1973 Toyota Corona. 1968 Opel Diplomat has automatic transmission and 1973 Toyota Corona has manual transmission. 1973 Toyota Corona 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 | 1973 Toyota Corona | |
| Make | Opel | Toyota |
| Model | Diplomat | Corona |
| Year Released | 1968 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 5354 cc | 1968 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 227 HP | 89 HP |
| Engine RPM | 4700 RPM | 5000 RPM |
| Torque | 427 Nm | 144 Nm |
| Torque RPM | 3000 RPM | 3600 RPM |
| Engine Bore Size | 101.6 mm | 88.5 mm |
| Engine Stroke Size | 82.6 mm | 80 mm |
| Engine Compression Ratio | 10.5:1 | 8.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1690 kg | 1110 kg |
| Vehicle Length | 4960 mm | 4260 mm |
| Vehicle Width | 1910 mm | 1620 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2850 mm | 2510 mm |
