1984 Audi 90 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 25 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 2,226 cc (5 cylinders), 1984 Audi 90 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (200 HP @ 5100 RPM) has 61 more horse power than 1984 Audi 90. (139 HP @ 5700 RPM) In normal driving conditions, 2009 Audi A4 should accelerate faster than 1984 Audi 90. With that said, vehicle weight also plays an important factor in acceleration. 1984 Audi 90 weights approximately 330 kg more than 2009 Audi A4.
Let's talk about torque, 2009 Audi A4 (281 Nm @ 1800 RPM) has 91 more torque (in Nm) than 1984 Audi 90. (190 Nm @ 3500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1984 Audi 90.
Compare all specifications:
| 1984 Audi 90 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | 90 | A4 |
| Year Released | 1984 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 1983 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 139 HP | 200 HP |
| Engine RPM | 5700 RPM | 5100 RPM |
| Torque | 190 Nm | 281 Nm |
| Torque RPM | 3500 RPM | 1800 RPM |
| Engine Bore Size | 81 mm | 82.5 mm |
| Engine Stroke Size | 86.4 mm | 92.8 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1260 kg | 930 kg |
| Vehicle Length | 4470 mm | 4580 mm |
| Vehicle Width | 1690 mm | 1780 mm |
| Vehicle Height | 1370 mm | 1400 mm |
| Wheelbase Size | 2550 mm | 2660 mm |
