2005 Audi A4 vs. 1977 Audi Fox
To start off, 2005 Audi A4 is newer by 28 year(s). Which means there will be less support and parts availability for 1977 Audi Fox. In addition, the cost of maintenance, including insurance, on 1977 Audi Fox would be higher. At 1,595 cc (4 cylinders), 2005 Audi A4 is equipped with a bigger engine. In terms of performance, 2005 Audi A4 (101 HP @ 5600 RPM) has 26 more horse power than 1977 Audi Fox. (75 HP @ 5500 RPM). In normal driving conditions, 2005 Audi A4 should accelerate faster than 1977 Audi Fox. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 444 kg more than 1977 Audi Fox. 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, 2005 Audi A4 (148 Nm @ 3800 RPM) has 36 more torque (in Nm) than 1977 Audi Fox. (112 Nm @ 3200 RPM). This means 2005 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1977 Audi Fox.
Compare all specifications:
| 2005 Audi A4 | 1977 Audi Fox | |
| Make | Audi | Audi |
| Model | A4 | Fox |
| Year Released | 2005 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 1588 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 101 HP | 75 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 148 Nm | 112 Nm |
| Torque RPM | 3800 RPM | 3200 RPM |
| Engine Bore Size | 81 mm | 79.5 mm |
| Engine Stroke Size | 77.4 mm | 80 mm |
| Engine Compression Ratio | 10.5:1 | 8.2:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1356 kg | 912 kg |
| Vehicle Length | 4550 mm | 4390 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1370 mm |
| Wheelbase Size | 2660 mm | 2550 mm |
| Fuel Tank Capacity | 70 L | 60 L |
