1963 AC Greyhound vs. 1956 Buick 40
To start off, 1963 AC Greyhound is newer by 7 year(s). Which means there will be less support and parts availability for 1956 Buick 40. In addition, the cost of maintenance, including insurance, on 1956 Buick 40 would be higher. At 5,279 cc (8 cylinders), 1956 Buick 40 is equipped with a bigger engine. In terms of performance, 1956 Buick 40 (252 HP @ 4400 RPM) has 129 more horse power than 1963 AC Greyhound. (123 HP @ 5750 RPM) In normal driving conditions, 1956 Buick 40 should accelerate faster than 1963 AC Greyhound. With that said, vehicle weight also plays an important factor in acceleration. 1956 Buick 40 weights approximately 575 kg more than 1963 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, 1956 Buick 40 (462 Nm) has 283 more torque (in Nm) than 1963 AC Greyhound. (179 Nm). This means 1956 Buick 40 will have an easier job in driving up hills or pulling heavy equipment than 1963 AC Greyhound.
Compare all specifications:
| 1963 AC Greyhound | 1956 Buick 40 | |
| Make | AC | Buick |
| Model | Greyhound | 40 |
| Year Released | 1963 | 1956 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 5279 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 123 HP | 252 HP |
| Engine RPM | 5750 RPM | 4400 RPM |
| Torque | 179 Nm | 462 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1015 kg | 1590 kg |
| Vehicle Width | 1670 mm | 1950 mm |
| Wheelbase Size | 2550 mm | 3110 mm |
