1973 AC 428 vs. 1968 Opel GT
To start off, 1973 AC 428 is newer by 5 year(s). Which means there will be less support and parts availability for 1968 Opel GT. In addition, the cost of maintenance, including insurance, on 1968 Opel GT would be higher. At 7,002 cc (8 cylinders), 1973 AC 428 is equipped with a bigger engine. In terms of performance, 1973 AC 428 (298 HP @ 4600 RPM) has 240 more horse power than 1968 Opel GT. (58 HP @ 5200 RPM). In normal driving conditions, 1973 AC 428 should accelerate faster than 1968 Opel GT. With that said, vehicle weight also plays an important factor in acceleration. 1973 AC 428 weights approximately 560 kg more than 1968 Opel GT. 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, 1973 AC 428 (639 Nm @ 2800 RPM) has 552 more torque (in Nm) than 1968 Opel GT. (87 Nm @ 3800 RPM). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1968 Opel GT.
Compare all specifications:
| 1973 AC 428 | 1968 Opel GT | |
| Make | AC | Opel |
| Model | 428 | GT |
| Year Released | 1973 | 1968 |
| Engine Position | Front | Front |
| Engine Size | 7002 cc | 1078 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 58 HP |
| Engine RPM | 4600 RPM | 5200 RPM |
| Torque | 639 Nm | 87 Nm |
| Torque RPM | 2800 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1430 kg | 870 kg |
| Vehicle Length | 4430 mm | 4120 mm |
| Vehicle Width | 1710 mm | 1590 mm |
| Vehicle Height | 1310 mm | 1230 mm |
| Wheelbase Size | 2450 mm | 2440 mm |
