1965 AC 427 vs. 2009 BMW X5
To start off, 2009 BMW X5 is newer by 44 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 178 more horse power than 2009 BMW X5. (232 HP @ 4000 RPM). In normal driving conditions, 1965 AC 427 should accelerate faster than 2009 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X5 weights approximately 753 kg more than 1965 AC 427.
Because 2009 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1965 AC 427. In wet, icy, snow, or gravel driving conditions, 2009 BMW X5 will offer significantly more control. 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 131 more torque (in Nm) than 2009 BMW X5. (521 Nm @ 2000 RPM). This means 1965 AC 427 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW X5.
Compare all specifications:
| 1965 AC 427 | 2009 BMW X5 | |
| Make | AC | BMW |
| Model | 427 | X5 |
| Year Released | 1965 | 2009 |
| 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 | 232 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 652 Nm | 521 Nm |
| Torque RPM | 3700 RPM | 2000 RPM |
| Engine Bore Size | 107.7 mm | 84 mm |
| Engine Stroke Size | 96 mm | 90 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1397 kg | 2150 kg |
| Vehicle Length | 4430 mm | 4860 mm |
| Vehicle Width | 1710 mm | 1940 mm |
| Vehicle Height | 1300 mm | 1740 mm |
| Wheelbase Size | 2440 mm | 2940 mm |
| Fuel Tank Capacity | 81 L | 85 L |
