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 (197 HP @ 5100 RPM) has 83 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 400 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 (280 Nm @ 1800 RPM) has 112 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 | 1984 cc | 1992 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 197 HP | 114 HP |
| Engine RPM | 5100 RPM | 5700 RPM |
| Torque | 280 Nm | 168 Nm |
| Torque RPM | 1800 RPM | 3200 RPM |
| Engine Bore Size | 82.5 mm | 81 mm |
| Engine Stroke Size | 92.8 mm | 77.4 mm |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1450 kg | 1050 kg |
| Vehicle Length | 4590 mm | 4470 mm |
| Vehicle Width | 1780 mm | 1690 mm |
| Vehicle Height | 1430 mm | 1370 mm |
| Wheelbase Size | 2430 mm | 2550 mm |
