2006 Audi A4 vs. 1981 Ford Fiesta
To start off, 2006 Audi A4 is newer by 25 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 1,968 cc (4 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2006 Audi A4 (138 HP @ 4000 RPM) has 55 more horse power than 1981 Ford Fiesta. (83 HP @ 5300 RPM). In normal driving conditions, 2006 Audi A4 should accelerate faster than 1981 Ford Fiesta. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 730 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.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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 A4 (320 Nm @ 1750 RPM) has 191 more torque (in Nm) than 1981 Ford Fiesta. (129 Nm @ 2800 RPM). This means 2006 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 Ford Fiesta.
Compare all specifications:
| 2006 Audi A4 | 1981 Ford Fiesta | |
| Make | Audi | Ford |
| Model | A4 | Fiesta |
| Year Released | 2006 | 1981 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1968 cc | 1608 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 138 HP | 83 HP |
| Engine RPM | 4000 RPM | 5300 RPM |
| Torque | 320 Nm | 129 Nm |
| Torque RPM | 1750 RPM | 2800 RPM |
| Engine Compression Ratio | 18.0:1 | 9.0:1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 212 km/hour | 166 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1530 kg | 800 kg |
| Vehicle Length | 4550 mm | 3570 mm |
| Vehicle Width | 1780 mm | 1590 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2660 mm | 2400 mm |
| Fuel Tank Capacity | 70 L | 34 L |
