1974 AC 428 vs. 1961 AC Greyhound
To start off, 1974 AC 428 is newer by 13 year(s). Which means there will be less support and parts availability for 1961 AC Greyhound. In addition, the cost of maintenance, including insurance, on 1961 AC Greyhound would be higher. At 7,003 cc (8 cylinders), 1974 AC 428 is equipped with a bigger engine. In terms of performance, 1974 AC 428 (298 HP @ 4600 RPM) has 175 more horse power than 1961 AC Greyhound. (123 HP @ 5750 RPM). In normal driving conditions, 1974 AC 428 should accelerate faster than 1961 AC Greyhound. With that said, vehicle weight also plays an important factor in acceleration. 1974 AC 428 weights approximately 415 kg more than 1961 AC Greyhound. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1974 AC 428 (639 Nm) has 460 more torque (in Nm) than 1961 AC Greyhound. (179 Nm). This means 1974 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1961 AC Greyhound.
Compare all specifications:
| 1974 AC 428 | 1961 AC Greyhound | |
| Make | AC | AC |
| Model | 428 | Greyhound |
| Year Released | 1974 | 1961 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 1971 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 123 HP |
| Engine RPM | 4600 RPM | 5750 RPM |
| Torque | 639 Nm | 179 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1430 kg | 1015 kg |
| Vehicle Length | 4430 mm | 4580 mm |
| Vehicle Width | 1710 mm | 1670 mm |
| Vehicle Height | 1310 mm | 1340 mm |
| Wheelbase Size | 2450 mm | 2550 mm |
