2003 AC Cobra vs. 2007 Audi S4
To start off, 2007 Audi S4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 AC Cobra. In addition, the cost of maintenance, including insurance, on 2003 AC Cobra would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2003 AC Cobra (350 HP @ 6500 RPM) has 10 more horse power than 2007 Audi S4. (340 HP @ 7000 RPM). In normal driving conditions, 2003 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 598 kg more than 2003 AC Cobra.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2003 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, 2007 Audi S4 (410 Nm @ 3500 RPM) has 10 more torque (in Nm) than 2003 AC Cobra. (400 Nm @ 4000 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2003 AC Cobra.
Compare all specifications:
| 2003 AC Cobra | 2007 Audi S4 | |
| Make | AC | Audi |
| Model | Cobra | S4 |
| Year Released | 2003 | 2007 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3506 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 350 HP | 340 HP |
| Engine RPM | 6500 RPM | 7000 RPM |
| Torque | 400 Nm | 410 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 83 mm | 84.5 mm |
| Engine Stroke Size | 81 mm | 92.8 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1062 kg | 1660 kg |
| Vehicle Length | 4210 mm | 4590 mm |
| Vehicle Width | 1750 mm | 1780 mm |
| Vehicle Height | 1210 mm | 1430 mm |
| Wheelbase Size | 2300 mm | 2650 mm |
