1971 Ford Mustang vs. 2006 Audi S4
To start off, 2006 Audi S4 is newer by 35 year(s). Which means there will be less support and parts availability for 1971 Ford Mustang. In addition, the cost of maintenance, including insurance, on 1971 Ford Mustang would be higher. At 5,752 cc (8 cylinders), 1971 Ford Mustang is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (339 HP @ 7000 RPM) has 9 more horse power than 1971 Ford Mustang. (330 HP @ 5400 RPM) In normal driving conditions, 2006 Audi S4 should accelerate faster than 1971 Ford Mustang. With that said, vehicle weight also plays an important factor in acceleration. 1971 Ford Mustang weights approximately 340 kg more than 2006 Audi S4.
Because 2006 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1971 Ford Mustang. 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, 1971 Ford Mustang (503 Nm @ 4000 RPM) has 92 more torque (in Nm) than 2006 Audi S4. (411 Nm @ 3500 RPM). This means 1971 Ford Mustang will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi S4. 2006 Audi S4 has automatic transmission and 1971 Ford Mustang has manual transmission. 1971 Ford Mustang will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Audi S4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1971 Ford Mustang | 2006 Audi S4 | |
| Make | Ford | Audi |
| Model | Mustang | S4 |
| Year Released | 1971 | 2006 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 5752 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 330 HP | 339 HP |
| Engine RPM | 5400 RPM | 7000 RPM |
| Torque | 503 Nm | 411 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 101.6 mm | 84.5 mm |
| Engine Stroke Size | 88.9 mm | 92.8 mm |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1615 kg | 1275 kg |
| Vehicle Length | 4820 mm | 4580 mm |
| Vehicle Width | 1890 mm | 1790 mm |
| Vehicle Height | 1280 mm | 1450 mm |
| Wheelbase Size | 2780 mm | 2660 mm |
| Fuel Tank Capacity | 75 L | 63 L |
