2008 Audi A4 vs. 1984 Audi 90
To start off, 2008 Audi A4 is newer by 24 year(s). Which means there will be less support and parts availability for 1984 Audi 90. In addition, the cost of maintenance, including insurance, on 1984 Audi 90 would be higher. At 2,965 cc (6 cylinders), 2008 Audi A4 is equipped with a bigger engine. In terms of performance, 2008 Audi A4 (222 HP @ 4000 RPM) has 83 more horse power than 1984 Audi 90. (139 HP @ 5700 RPM). In normal driving conditions, 2008 Audi A4 should accelerate faster than 1984 Audi 90. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A4 weights approximately 170 kg more than 1984 Audi 90. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2008 Audi A4 (450 Nm @ 1400 RPM) has 260 more torque (in Nm) than 1984 Audi 90. (190 Nm @ 3500 RPM). This means 2008 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1984 Audi 90.
Compare all specifications:
| 2008 Audi A4 | 1984 Audi 90 | |
| Make | Audi | Audi |
| Model | A4 | 90 |
| Year Released | 2008 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 2965 cc | 2226 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 222 HP | 139 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 450 Nm | 190 Nm |
| Torque RPM | 1400 RPM | 3500 RPM |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 91.4 mm | 86.4 mm |
| Fuel Type | Diesel | Gasoline |
| Vehicle Weight | 1430 kg | 1260 kg |
| Vehicle Length | 4550 mm | 4470 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1370 mm |
| Wheelbase Size | 2660 mm | 2550 mm |
