1999 Audi A4 vs. 1975 Audi 80
To start off, 1999 Audi A4 is newer by 24 year(s). Which means there will be less support and parts availability for 1975 Audi 80. In addition, the cost of maintenance, including insurance, on 1975 Audi 80 would be higher. At 1,781 cc (4 cylinders), 1999 Audi A4 is equipped with a bigger engine. In terms of performance, 1999 Audi A4 (123 HP @ 5800 RPM) has 33 more horse power than 1975 Audi 80. (90 HP @ 5600 RPM). In normal driving conditions, 1999 Audi A4 should accelerate faster than 1975 Audi 80. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A4 weights approximately 336 kg more than 1975 Audi 80. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1975 Audi 80. In wet, icy, snow, or gravel driving conditions, 1999 Audi A4 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, 1999 Audi A4 (168 Nm) has 5 more torque (in Nm) than 1975 Audi 80. (163 Nm). This means 1999 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Audi 80.
Compare all specifications:
| 1999 Audi A4 | 1975 Audi 80 | |
| Make | Audi | Audi |
| Model | A4 | 80 |
| Year Released | 1999 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1779 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 90 HP |
| Engine RPM | 5800 RPM | 5600 RPM |
| Torque | 168 Nm | 163 Nm |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 86.4 mm |
| Engine Compression Ratio | 10.3:1 | 10.0:1 |
| Top Speed | 201 km/hour | 167 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1356 kg | 1020 kg |
| Vehicle Length | 4480 mm | 4400 mm |
| Vehicle Width | 1740 mm | 1680 mm |
| Vehicle Height | 1420 mm | 1380 mm |
| Wheelbase Size | 2610 mm | 2550 mm |
