2005 Audi RS6 vs. 1981 Ford Fiesta
To start off, 2005 Audi RS6 is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Ford Fiesta. In addition, the cost of maintenance, including insurance, on 1981 Ford Fiesta would be higher. At 4,163 cc (8 cylinders), 2005 Audi RS6 is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 6300 RPM) has 361 more horse power than 1981 Ford Fiesta. (83 HP @ 5300 RPM). In normal driving conditions, 2005 Audi RS6 should accelerate faster than 1981 Ford Fiesta. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS6 weights approximately 1110 kg more than 1981 Ford Fiesta. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 1981 Ford Fiesta. In wet, icy, snow, or gravel driving conditions, 2005 Audi RS6 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, 2005 Audi RS6 (560 Nm @ 1950 RPM) has 431 more torque (in Nm) than 1981 Ford Fiesta. (129 Nm @ 2800 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1981 Ford Fiesta.
Compare all specifications:
| 2005 Audi RS6 | 1981 Ford Fiesta | |
| Make | Audi | Ford |
| Model | RS6 | Fiesta |
| Year Released | 2005 | 1981 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1608 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 444 HP | 83 HP |
| Engine RPM | 6300 RPM | 5300 RPM |
| Torque | 560 Nm | 129 Nm |
| Torque RPM | 1950 RPM | 2800 RPM |
| Engine Compression Ratio | 9.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1910 kg | 800 kg |
| Vehicle Length | 4800 mm | 3570 mm |
| Vehicle Width | 1820 mm | 1590 mm |
| Vehicle Height | 1460 mm | 1380 mm |
| Wheelbase Size | 2660 mm | 2400 mm |
| Fuel Tank Capacity | 70 L | 34 L |
