1954 Alfa Romeo AR 51 vs. 1975 Bristol 411
To start off, 1975 Bristol 411 is newer by 21 year(s). Which means there will be less support and parts availability for 1954 Alfa Romeo AR 51. In addition, the cost of maintenance, including insurance, on 1954 Alfa Romeo AR 51 would be higher. At 6,277 cc (8 cylinders), 1975 Bristol 411 is equipped with a bigger engine. In terms of performance, 1975 Bristol 411 (288 HP @ 5200 RPM) has 225 more horse power than 1954 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 1975 Bristol 411 should accelerate faster than 1954 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 1975 Bristol 411 weights approximately 460 kg more than 1954 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:
| 1954 Alfa Romeo AR 51 | 1975 Bristol 411 | |
| Make | Alfa Romeo | Bristol |
| Model | AR 51 | 411 |
| Year Released | 1954 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 6277 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 63 HP | 288 HP |
| Engine RPM | 4400 RPM | 5200 RPM |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1250 kg | 1710 kg |
| Vehicle Length | 3530 mm | 4920 mm |
| Vehicle Width | 1580 mm | 1740 mm |
| Vehicle Height | 1830 mm | 1470 mm |
| Wheelbase Size | 2210 mm | 2910 mm |
