1984 Mazda RX-7 vs. 1973 AC 428
To start off, 1984 Mazda RX-7 is newer by 11 year(s). Which means there will be less support and parts availability for 1973 AC 428. In addition, the cost of maintenance, including insurance, on 1973 AC 428 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 184 more horse power than 1984 Mazda RX-7. (114 HP @ 6000 RPM) In normal driving conditions, 1973 AC 428 should accelerate faster than 1984 Mazda RX-7. With that said, vehicle weight also plays an important factor in acceleration. 1973 AC 428 weights approximately 370 kg more than 1984 Mazda RX-7. 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 481 more torque (in Nm) than 1984 Mazda RX-7. (158 Nm @ 4000 RPM). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1984 Mazda RX-7. 1973 AC 428 has automatic transmission and 1984 Mazda RX-7 has manual transmission. 1984 Mazda RX-7 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1973 AC 428 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1984 Mazda RX-7 | 1973 AC 428 | |
| Make | Mazda | AC |
| Model | RX-7 | 428 |
| Year Released | 1984 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 2292 cc | 7002 cc |
| Engine Type | dual-disk rotary | in-line |
| Horse Power | 114 HP | 298 HP |
| Engine RPM | 6000 RPM | 4600 RPM |
| Torque | 158 Nm | 639 Nm |
| Torque RPM | 4000 RPM | 2800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1060 kg | 1430 kg |
| Vehicle Length | 4290 mm | 4430 mm |
| Vehicle Width | 1680 mm | 1710 mm |
| Vehicle Height | 1270 mm | 1310 mm |
| Wheelbase Size | 2430 mm | 2450 mm |
