1984 Audi 90 vs. 1991 Porsche 928
To start off, 1991 Porsche 928 is newer by 7 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 4,663 cc (8 cylinders), 1991 Porsche 928 is equipped with a bigger engine. In terms of performance, 1991 Porsche 928 (306 HP @ 5900 RPM) has 167 more horse power than 1984 Audi 90. (139 HP @ 5700 RPM) In normal driving conditions, 1991 Porsche 928 should accelerate faster than 1984 Audi 90. With that said, vehicle weight also plays an important factor in acceleration. 1991 Porsche 928 weights approximately 270 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, 1991 Porsche 928 (408 Nm @ 4100 RPM) has 218 more torque (in Nm) than 1984 Audi 90. (190 Nm @ 3500 RPM). This means 1991 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1984 Audi 90.
Compare all specifications:
| 1984 Audi 90 | 1991 Porsche 928 | |
| Make | Audi | Porsche |
| Model | 90 | 928 |
| Year Released | 1984 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 4663 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 139 HP | 306 HP |
| Engine RPM | 5700 RPM | 5900 RPM |
| Torque | 190 Nm | 408 Nm |
| Torque RPM | 3500 RPM | 4100 RPM |
| Engine Bore Size | 81 mm | 97 mm |
| Engine Stroke Size | 86.4 mm | 78.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1260 kg | 1530 kg |
| Vehicle Length | 4470 mm | 4530 mm |
| Vehicle Width | 1690 mm | 2060 mm |
| Vehicle Height | 1370 mm | 1290 mm |
| Wheelbase Size | 2550 mm | 2510 mm |
