2004 Audi A4 vs. 1985 Audi 90
To start off, 2004 Audi A4 is newer by 19 year(s). Which means there will be less support and parts availability for 1985 Audi 90. In addition, the cost of maintenance, including insurance, on 1985 Audi 90 would be higher. At 1,992 cc (5 cylinders), 1985 Audi 90 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (160 HP @ 5700 RPM) has 46 more horse power than 1985 Audi 90. (114 HP @ 5700 RPM). In normal driving conditions, 2004 Audi A4 should accelerate faster than 1985 Audi 90. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 426 kg more than 1985 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, 2004 Audi A4 (225 Nm @ 1950 RPM) has 57 more torque (in Nm) than 1985 Audi 90. (168 Nm @ 3200 RPM). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1985 Audi 90.
Compare all specifications:
| 2004 Audi A4 | 1985 Audi 90 | |
| Make | Audi | Audi |
| Model | A4 | 90 |
| Year Released | 2004 | 1985 |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1992 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 160 HP | 114 HP |
| Engine RPM | 5700 RPM | 5700 RPM |
| Torque | 225 Nm | 168 Nm |
| Torque RPM | 1950 RPM | 3200 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 77.4 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1476 kg | 1050 kg |
| Vehicle Length | 4550 mm | 4470 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1370 mm |
| Wheelbase Size | 2470 mm | 2550 mm |
