1962 AC Greyhound vs. 2004 BMW 645
To start off, 2004 BMW 645 is newer by 42 year(s). Which means there will be less support and parts availability for 1962 AC Greyhound. In addition, the cost of maintenance, including insurance, on 1962 AC Greyhound would be higher. At 4,398 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (328 HP @ 6100 RPM) has 205 more horse power than 1962 AC Greyhound. (123 HP @ 5750 RPM) In normal driving conditions, 2004 BMW 645 should accelerate faster than 1962 AC Greyhound. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 800 kg more than 1962 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, 2004 BMW 645 (451 Nm) has 272 more torque (in Nm) than 1962 AC Greyhound. (179 Nm). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1962 AC Greyhound.
Compare all specifications:
| 1962 AC Greyhound | 2004 BMW 645 | |
| Make | AC | BMW |
| Model | Greyhound | 645 |
| Year Released | 1962 | 2004 |
| Engine Position | Front | Front |
| Engine Size | 1971 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 123 HP | 328 HP |
| Engine RPM | 5750 RPM | 6100 RPM |
| Torque | 179 Nm | 451 Nm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1015 kg | 1815 kg |
| Vehicle Length | 4580 mm | 4830 mm |
| Vehicle Width | 1670 mm | 1860 mm |
| Vehicle Height | 1340 mm | 1380 mm |
| Wheelbase Size | 2550 mm | 2790 mm |
| Fuel Tank Capacity | 54 L | 70 L |
