2005 Audi S6 vs. 1984 Audi 90
To start off, 2005 Audi S6 is newer by 21 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 4,172 cc (8 cylinders), 2005 Audi S6 is equipped with a bigger engine. In terms of performance, 2005 Audi S6 (335 HP @ 7000 RPM) has 196 more horse power than 1984 Audi 90. (139 HP @ 5700 RPM). In normal driving conditions, 2005 Audi S6 should accelerate faster than 1984 Audi 90. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S6 weights approximately 500 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, 2005 Audi S6 (420 Nm @ 3400 RPM) has 230 more torque (in Nm) than 1984 Audi 90. (190 Nm @ 3500 RPM). This means 2005 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 1984 Audi 90.
Compare all specifications:
| 2005 Audi S6 | 1984 Audi 90 | |
| Make | Audi | Audi |
| Model | S6 | 90 |
| Year Released | 2005 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 2226 cc |
| Engine Cylinders | 8 cylinders | 5 cylinders |
| Engine Type | V | in-line |
| Horse Power | 335 HP | 139 HP |
| Engine RPM | 7000 RPM | 5700 RPM |
| Torque | 420 Nm | 190 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 81 mm |
| Engine Stroke Size | 93 mm | 86.4 mm |
| Vehicle Weight | 1760 kg | 1260 kg |
| Wheelbase Size | 2770 mm | 2550 mm |
