1999 Audi A4 vs. 1985 Audi 90
To start off, 1999 Audi A4 is newer by 14 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, 1999 Audi A4 (123 HP @ 5800 RPM) has 9 more horse power than 1985 Audi 90. (114 HP @ 5700 RPM). In normal driving conditions, 1999 Audi A4 should accelerate faster than 1985 Audi 90. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A4 weights approximately 306 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, both vehicles can yield 168 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 1999 Audi A4 | 1985 Audi 90 | |
| Make | Audi | Audi |
| Model | A4 | 90 |
| Year Released | 1999 | 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 | 123 HP | 114 HP |
| Engine RPM | 5800 RPM | 5700 RPM |
| Torque | 168 Nm | 168 Nm |
| Torque RPM | 3500 RPM | 3200 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 77.4 mm |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1356 kg | 1050 kg |
| Vehicle Length | 4480 mm | 4470 mm |
| Vehicle Width | 1740 mm | 1690 mm |
| Vehicle Height | 1420 mm | 1370 mm |
| Wheelbase Size | 2610 mm | 2550 mm |
