1975 AC 428 vs. 1990 Opel Lotus Omega
To start off, 1990 Opel Lotus Omega is newer by 15 year(s). Which means there will be less support and parts availability for 1975 AC 428. In addition, the cost of maintenance, including insurance, on 1975 AC 428 would be higher. At 7,003 cc (8 cylinders), 1975 AC 428 is equipped with a bigger engine. In terms of performance, 1990 Opel Lotus Omega (377 HP @ 5200 RPM) has 79 more horse power than 1975 AC 428. (298 HP @ 4600 RPM) In normal driving conditions, 1990 Opel Lotus Omega should accelerate faster than 1975 AC 428. With that said, vehicle weight also plays an important factor in acceleration. 1990 Opel Lotus Omega weights approximately 233 kg more than 1975 AC 428. 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, 1975 AC 428 (639 Nm @ 2800 RPM) has 71 more torque (in Nm) than 1990 Opel Lotus Omega. (568 Nm @ 4200 RPM). This means 1975 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1990 Opel Lotus Omega.
Compare all specifications:
| 1975 AC 428 | 1990 Opel Lotus Omega | |
| Make | AC | Opel |
| Model | 428 | Lotus Omega |
| Year Released | 1975 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 3615 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 377 HP |
| Engine RPM | 4600 RPM | 5200 RPM |
| Torque | 639 Nm | 568 Nm |
| Torque RPM | 2800 RPM | 4200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1663 kg |
| Vehicle Length | 4430 mm | 4690 mm |
| Vehicle Width | 1710 mm | 1940 mm |
| Vehicle Height | 1310 mm | 1440 mm |
| Wheelbase Size | 2450 mm | 2740 mm |
