1965 AC 427 vs. 2012 BMW 640
To start off, 2012 BMW 640 is newer by 47 year(s). Which means there will be less support and parts availability for 1965 AC 427. In addition, the cost of maintenance, including insurance, on 1965 AC 427 would be higher. At 6,997 cc (8 cylinders), 1965 AC 427 is equipped with a bigger engine. In terms of performance, 1965 AC 427 (410 HP @ 4000 RPM) has 99 more horse power than 2012 BMW 640. (311 HP @ 4400 RPM). In normal driving conditions, 1965 AC 427 should accelerate faster than 2012 BMW 640. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW 640 weights approximately 538 kg more than 1965 AC 427.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1965 AC 427 (652 Nm @ 3700 RPM) has 22 more torque (in Nm) than 2012 BMW 640. (630 Nm @ 1500 RPM). This means 1965 AC 427 will have an easier job in driving up hills or pulling heavy equipment than 2012 BMW 640.
Compare all specifications:
| 1965 AC 427 | 2012 BMW 640 | |
| Make | AC | BMW |
| Model | 427 | 640 |
| Year Released | 1965 | 2012 |
| Engine Position | Front | Front |
| Engine Size | 6997 cc | 2993 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 410 HP | 311 HP |
| Engine RPM | 4000 RPM | 4400 RPM |
| Torque | 652 Nm | 630 Nm |
| Torque RPM | 3700 RPM | 1500 RPM |
| Engine Bore Size | 107.7 mm | 90 mm |
| Engine Stroke Size | 96 mm | 84 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1397 kg | 1935 kg |
| Vehicle Length | 4430 mm | 4894 mm |
| Vehicle Width | 1710 mm | 1894 mm |
| Vehicle Height | 1300 mm | 1365 mm |
| Wheelbase Size | 2440 mm | 2855 mm |
| Fuel Tank Capacity | 81 L | 70 L |
