1965 AC 427 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 40 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, 2005 Porsche 911 (414 HP @ 6000 RPM) has 4 more horse power than 1965 AC 427. (410 HP @ 4000 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1965 AC 427. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 223 kg more than 1965 AC 427. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Porsche 911 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, 2005 Porsche 911 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 92 more torque (in Nm) than 2005 Porsche 911. (560 Nm @ 2700 RPM). This means 1965 AC 427 will have an easier job in driving up hills or pulling heavy equipment than 2005 Porsche 911.
Compare all specifications:
| 1965 AC 427 | 2005 Porsche 911 | |
| Make | AC | Porsche |
| Model | 427 | 911 |
| Year Released | 1965 | 2005 |
| Engine Position | Front | Rear |
| Engine Size | 6997 cc | 3596 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 410 HP | 414 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 652 Nm | 560 Nm |
| Torque RPM | 3700 RPM | 2700 RPM |
| Engine Bore Size | 107.7 mm | 100 mm |
| Engine Stroke Size | 96 mm | 76.4 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1397 kg | 1620 kg |
| Vehicle Length | 4430 mm | 4440 mm |
| Vehicle Width | 1710 mm | 1840 mm |
| Vehicle Height | 1300 mm | 1300 mm |
| Wheelbase Size | 2440 mm | 2360 mm |
| Fuel Tank Capacity | 81 L | 64 L |
