1954 Alfa Romeo AR 51 vs. 1962 Bristol 407
To start off, 1962 Bristol 407 is newer by 8 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 5,129 cc (8 cylinders), 1962 Bristol 407 is equipped with a bigger engine. In terms of performance, 1962 Bristol 407 (215 HP @ 4400 RPM) has 152 more horse power than 1954 Alfa Romeo AR 51. (63 HP @ 4400 RPM) In normal driving conditions, 1962 Bristol 407 should accelerate faster than 1954 Alfa Romeo AR 51. With that said, vehicle weight also plays an important factor in acceleration. 1962 Bristol 407 weights approximately 335 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.
Because 1954 Alfa Romeo AR 51 is four wheel drive (4WD), it will have significant more traction and grip than 1962 Bristol 407. In wet, icy, snow, or gravel driving conditions, 1954 Alfa Romeo AR 51 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. 1962 Bristol 407 has automatic transmission and 1954 Alfa Romeo AR 51 has manual transmission. 1954 Alfa Romeo AR 51 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1962 Bristol 407 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1954 Alfa Romeo AR 51 | 1962 Bristol 407 | |
| Make | Alfa Romeo | Bristol |
| Model | AR 51 | 407 |
| Year Released | 1954 | 1962 |
| Engine Position | Front | Front |
| Engine Size | 1884 cc | 5129 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 63 HP | 215 HP |
| Engine RPM | 4400 RPM | 4400 RPM |
| Engine Bore Size | 82.6 mm | 98.6 mm |
| Engine Stroke Size | 88 mm | 84.1 mm |
| Engine Compression Ratio | 7.0:1 | 9.0:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1250 kg | 1585 kg |
| Vehicle Length | 3530 mm | 4880 mm |
| Vehicle Width | 1580 mm | 1740 mm |
| Vehicle Height | 1830 mm | 1530 mm |
| Wheelbase Size | 2210 mm | 2910 mm |
