2005 Audi S4 vs. 1981 Ford Fiesta
To start off, 2005 Audi S4 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 S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (339 HP @ 7000 RPM) has 256 more horse power than 1981 Ford Fiesta. (83 HP @ 5500 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 1981 Ford Fiesta. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 875 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 S4 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 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, 2005 Audi S4 (430 Nm @ 3500 RPM) has 304 more torque (in Nm) than 1981 Ford Fiesta. (126 Nm @ 2800 RPM). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Ford Fiesta.
Compare all specifications:
| 2005 Audi S4 | 1981 Ford Fiesta | |
| Make | Audi | Ford |
| Model | S4 | Fiesta |
| Year Released | 2005 | 1981 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1598 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 339 HP | 83 HP |
| Engine RPM | 7000 RPM | 5500 RPM |
| Torque | 430 Nm | 126 Nm |
| Torque RPM | 3500 RPM | 2800 RPM |
| Engine Bore Size | 84.5 mm | 81 mm |
| Engine Stroke Size | 92.8 mm | 77.6 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 171 km/hour |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1675 kg | 800 kg |
| Vehicle Length | 4580 mm | 3570 mm |
| Vehicle Width | 1790 mm | 1590 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2580 mm | 2310 mm |
| Fuel Tank Capacity | 66 L | 34 L |
