2006 Audi S4 vs. 1978 Ford Mustang
To start off, 2006 Audi S4 is newer by 28 year(s). Which means there will be less support and parts availability for 1978 Ford Mustang. In addition, the cost of maintenance, including insurance, on 1978 Ford Mustang would be higher. At 4,941 cc (8 cylinders), 1978 Ford Mustang is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 7000 RPM) has 202 more horse power than 1978 Ford Mustang. (138 HP @ 3600 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 1978 Ford Mustang. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 594 kg more than 1978 Ford Mustang. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1978 Ford Mustang is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1978 Ford Mustang. However, in wet, icy, snow, or gravel driving conditions, 2006 Audi S4, being front wheel drive (FWD), will offer much better control with better grip. 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, 2006 Audi S4 (410 Nm @ 3500 RPM) has 71 more torque (in Nm) than 1978 Ford Mustang. (339 Nm @ 1800 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1978 Ford Mustang.
Compare all specifications:
| 2006 Audi S4 | 1978 Ford Mustang | |
| Make | Audi | Ford |
| Model | S4 | Mustang |
| Year Released | 2006 | 1978 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4941 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 340 HP | 138 HP |
| Engine RPM | 7000 RPM | 3600 RPM |
| Torque | 410 Nm | 339 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Engine Bore Size | 84.5 mm | 101.6 mm |
| Engine Stroke Size | 93 mm | 76.2 mm |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1884 kg | 1290 kg |
| Vehicle Length | 4590 mm | 4560 mm |
| Vehicle Width | 1790 mm | 1720 mm |
| Vehicle Height | 1420 mm | 1320 mm |
| Wheelbase Size | 2660 mm | 2560 mm |
