1966 AC Cobra vs. 2007 Audi S4
To start off, 2007 Audi S4 is newer by 41 year(s). Which means there will be less support and parts availability for 1966 AC Cobra. In addition, the cost of maintenance, including insurance, on 1966 AC Cobra would be higher. At 6,997 cc (8 cylinders), 1966 AC Cobra is equipped with a bigger engine. In terms of performance, 1966 AC Cobra (410 HP @ 6000 RPM) has 70 more horse power than 2007 Audi S4. (340 HP @ 7000 RPM). In normal driving conditions, 1966 AC Cobra should accelerate faster than 2007 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S4 weights approximately 383 kg more than 1966 AC Cobra.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1966 AC Cobra. In wet, icy, snow, or gravel driving conditions, 2007 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, 1966 AC Cobra (651 Nm @ 3700 RPM) has 241 more torque (in Nm) than 2007 Audi S4. (410 Nm @ 3500 RPM). This means 1966 AC Cobra will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
| 1966 AC Cobra | 2007 Audi S4 | |
| Make | AC | Audi |
| Model | Cobra | S4 |
| Year Released | 1966 | 2007 |
| Body Type | Roadster | Sedan |
| 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 | 6000 RPM | 7000 RPM |
| Torque | 651 Nm | 410 Nm |
| Torque RPM | 3700 RPM | 3500 RPM |
| Engine Bore Size | 107.7 mm | 84.5 mm |
| Engine Stroke Size | 96 mm | 93 mm |
| Engine Compression Ratio | 11.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1147 kg | 1530 kg |
| Vehicle Length | 3970 mm | 4590 mm |
| Vehicle Width | 1730 mm | 1790 mm |
| Vehicle Height | 1250 mm | 1420 mm |
| Wheelbase Size | 2290 mm | 2660 mm |
| Fuel Tank Capacity | 68 L | 63 L |
