1953 Alfa Romeo AR 51 vs. 1984 Audi 90
To start off, 1984 Audi 90 is newer by 31 year(s). Which means there will be less support and parts availability for 1953 Alfa Romeo AR 51. In addition, the cost of maintenance, including insurance, on 1953 Alfa Romeo AR 51 would be higher. At 2,226 cc (5 cylinders), 1984 Audi 90 is equipped with a bigger engine. In terms of performance, 1984 Audi 90 (139 HP @ 5700 RPM) has 76 more horse power than 1953 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 1984 Audi 90 should accelerate faster than 1953 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 1984 Audi 90 weights approximately 10 kg more than 1953 Alfa Romeo AR 51. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1953 Alfa Romeo AR 51 | 1984 Audi 90 | |
| Make | Alfa Romeo | Audi |
| Model | AR 51 | 90 |
| Year Released | 1953 | 1984 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 2226 cc |
| Engine Cylinders | 4 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 63 HP | 139 HP |
| Engine RPM | 4400 RPM | 5700 RPM |
| Engine Bore Size | 82.6 mm | 81 mm |
| Engine Stroke Size | 88 mm | 86.4 mm |
| Vehicle Weight | 1250 kg | 1260 kg |
| Vehicle Length | 3530 mm | 4470 mm |
| Vehicle Width | 1580 mm | 1690 mm |
| Vehicle Height | 1830 mm | 1370 mm |
| Wheelbase Size | 2210 mm | 2550 mm |
