2009 Audi A4 vs. 1984 Audi 90
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 2,393 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (168 HP @ 6000 RPM) has 54 more horse power than 1984 Audi 90. (114 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. 2009 Audi A4 weights approximately 384 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, 2009 Audi A4 (230 Nm @ 3200 RPM) has 62 more torque (in Nm) than 1984 Audi 90. (168 Nm @ 3200 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:
| 2009 Audi A4 | 1984 Audi 90 | |
| Make | Audi | Audi |
| Model | A4 | 90 |
| Year Released | 2009 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 1994 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 168 HP | 114 HP |
| Engine RPM | 6000 RPM | 5700 RPM |
| Torque | 230 Nm | 168 Nm |
| Torque RPM | 3200 RPM | 3200 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 77.4 mm | 77.4 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Vehicle Weight | 1440 kg | 1056 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 |
