1965 AC 427 vs. 2006 Audi S4
To start off, 2006 Audi S4 is newer by 41 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 70 more horse power than 2006 Audi S4. (340 HP @ 6800 RPM). In normal driving conditions, 1965 AC 427 should accelerate faster than 2006 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 133 kg more than 1965 AC 427.
Because 2006 Audi S4 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, 2006 Audi S4 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 242 more torque (in Nm) than 2006 Audi S4. (410 Nm @ 3500 RPM). This means 1965 AC 427 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi S4.
Compare all specifications:
| 1965 AC 427 | 2006 Audi S4 | |
| Make | AC | Audi |
| Model | 427 | S4 |
| Year Released | 1965 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 6997 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 410 HP | 340 HP |
| Engine RPM | 4000 RPM | 6800 RPM |
| Torque | 652 Nm | 410 Nm |
| Torque RPM | 3700 RPM | 3500 RPM |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1397 kg | 1530 kg |
| Vehicle Length | 4430 mm | 4580 mm |
| Vehicle Width | 1710 mm | 1780 mm |
| Vehicle Height | 1300 mm | 1400 mm |
| Wheelbase Size | 2440 mm | 2660 mm |
| Fuel Tank Capacity | 81 L | 63 L |
