1981 Audi 80 vs. 1984 Audi 90
To start off, 1984 Audi 90 is newer by 3 year(s). Which means there will be less support and parts availability for 1981 Audi 80. In addition, the cost of maintenance, including insurance, on 1981 Audi 80 would be higher. At 2,226 cc (5 cylinders), 1984 Audi 90 is equipped with a bigger engine. In terms of performance, 1984 Audi 90 (139 HP @ 5700 RPM) has 3 more horse power than 1981 Audi 80. (136 HP @ 5900 RPM) In normal driving conditions, 1984 Audi 90 should accelerate faster than 1981 Audi 80. With that said, vehicle weight also plays an important factor in acceleration. 1984 Audi 90 weights approximately 70 kg more than 1981 Audi 80. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1984 Audi 90 (190 Nm @ 3500 RPM) has 14 more torque (in Nm) than 1981 Audi 80. (176 Nm @ 4500 RPM). This means 1984 Audi 90 will have an easier job in driving up hills or pulling heavy equipment than 1981 Audi 80.
Compare all specifications:
| 1981 Audi 80 | 1984 Audi 90 | |
| Make | Audi | Audi |
| Model | 80 | 90 |
| Year Released | 1981 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 2144 cc | 2226 cc |
| Engine Cylinders | 5 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 136 HP | 139 HP |
| Engine RPM | 5900 RPM | 5700 RPM |
| Torque | 176 Nm | 190 Nm |
| Torque RPM | 4500 RPM | 3500 RPM |
| Engine Bore Size | 79.5 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 86.4 mm |
| Vehicle Weight | 1190 kg | 1260 kg |
| Vehicle Length | 4390 mm | 4470 mm |
| Vehicle Width | 1690 mm | 1690 mm |
| Vehicle Height | 1360 mm | 1370 mm |
| Wheelbase Size | 2550 mm | 2550 mm |
