1975 AC 428 vs. 1986 Mazda 929
To start off, 1986 Mazda 929 is newer by 11 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, 1975 AC 428 (298 HP @ 4600 RPM) has 209 more horse power than 1986 Mazda 929. (89 HP @ 4800 RPM). In normal driving conditions, 1975 AC 428 should accelerate faster than 1986 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1975 AC 428 weights approximately 280 kg more than 1986 Mazda 929. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1975 AC 428 (639 Nm @ 2800 RPM) has 479 more torque (in Nm) than 1986 Mazda 929. (160 Nm @ 2600 RPM). This means 1975 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1986 Mazda 929.
Compare all specifications:
| 1975 AC 428 | 1986 Mazda 929 | |
| Make | AC | Mazda |
| Model | 428 | 929 |
| Year Released | 1975 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 1970 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 89 HP |
| Engine RPM | 4600 RPM | 4800 RPM |
| Torque | 639 Nm | 160 Nm |
| Torque RPM | 2800 RPM | 2600 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1430 kg | 1150 kg |
| Vehicle Length | 4430 mm | 4710 mm |
| Vehicle Width | 1710 mm | 1700 mm |
| Vehicle Height | 1310 mm | 1430 mm |
| Wheelbase Size | 2450 mm | 2620 mm |
