1961 AC Greyhound vs. 1972 BMW 520
To start off, 1972 BMW 520 is newer by 11 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 1,991 cc (6 cylinders), 1972 BMW 520 is equipped with a bigger engine. In terms of performance, 1972 BMW 520 (150 HP @ 5900 RPM) has 27 more horse power than 1961 AC Greyhound. (123 HP @ 5750 RPM) In normal driving conditions, 1972 BMW 520 should accelerate faster than 1961 AC Greyhound. With that said, vehicle weight also plays an important factor in acceleration. 1972 BMW 520 weights approximately 430 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, 1972 BMW 520 (190 Nm) has 11 more torque (in Nm) than 1961 AC Greyhound. (179 Nm). This means 1972 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 1961 AC Greyhound.
Compare all specifications:
| 1961 AC Greyhound | 1972 BMW 520 | |
| Make | AC | BMW |
| Model | Greyhound | 520 |
| Year Released | 1961 | 1972 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 1991 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 123 HP | 150 HP |
| Engine RPM | 5750 RPM | 5900 RPM |
| Torque | 179 Nm | 190 Nm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1015 kg | 1445 kg |
| Vehicle Length | 4580 mm | 4630 mm |
| Vehicle Width | 1670 mm | 1700 mm |
| Vehicle Height | 1340 mm | 1430 mm |
| Wheelbase Size | 2550 mm | 2770 mm |
| Fuel Tank Capacity | 54 L | 80 L |
