2009 Audi RS4 vs. 1971 Ford Mustang
To start off, 2009 Audi RS4 is newer by 38 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, 2009 Audi RS4 (414 HP @ 7800 RPM) has 84 more horse power than 1971 Ford Mustang. (330 HP @ 5400 RPM). In normal driving conditions, 2009 Audi RS4 should accelerate faster than 1971 Ford Mustang. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS4 weights approximately 35 kg more than 1971 Ford Mustang. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi RS4 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, 2009 Audi RS4 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 73 more torque (in Nm) than 2009 Audi RS4. (430 Nm @ 5500 RPM). This means 1971 Ford Mustang will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi RS4.
Compare all specifications:
| 2009 Audi RS4 | 1971 Ford Mustang | |
| Make | Audi | Ford |
| Model | RS4 | Mustang |
| Year Released | 2009 | 1971 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 5752 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 414 HP | 330 HP |
| Engine RPM | 7800 RPM | 5400 RPM |
| Torque | 430 Nm | 503 Nm |
| Torque RPM | 5500 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 101.6 mm |
| Engine Stroke Size | 92.8 mm | 88.9 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1650 kg | 1615 kg |
| Vehicle Length | 4590 mm | 4820 mm |
| Vehicle Width | 1820 mm | 1890 mm |
| Vehicle Height | 1420 mm | 1280 mm |
| Wheelbase Size | 2660 mm | 2780 mm |
| Fuel Tank Capacity | 63 L | 75 L |
