1991 Alpina B vs. 1984 Audi 90
To start off, 1991 Alpina B 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 5,646 cc (12 cylinders), 1991 Alpina B is equipped with a bigger engine. In terms of performance, 1991 Alpina B (410 HP @ 5400 RPM) has 271 more horse power than 1984 Audi 90. (139 HP @ 5700 RPM). In normal driving conditions, 1991 Alpina B should accelerate faster than 1984 Audi 90. With that said, vehicle weight also plays an important factor in acceleration. 1991 Alpina B weights approximately 606 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 Alpina B (570 Nm @ 4000 RPM) has 380 more torque (in Nm) than 1984 Audi 90. (190 Nm @ 3500 RPM). This means 1991 Alpina B will have an easier job in driving up hills or pulling heavy equipment than 1984 Audi 90.
Compare all specifications:
| 1991 Alpina B | 1984 Audi 90 | |
| Make | Alpina | Audi |
| Model | B | 90 |
| Year Released | 1991 | 1984 |
| Engine Size | 5646 cc | 2226 cc |
| Engine Cylinders | 12 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 410 HP | 139 HP |
| Engine RPM | 5400 RPM | 5700 RPM |
| Torque | 570 Nm | 190 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1866 kg | 1260 kg |
| Vehicle Length | 4790 mm | 4470 mm |
| Vehicle Width | 1860 mm | 1690 mm |
| Vehicle Height | 1350 mm | 1370 mm |
| Wheelbase Size | 2690 mm | 2550 mm |
