1955 Armstrong Siddeley Sapphire vs. 1973 Cadillac Calais
To start off, 1973 Cadillac Calais is newer by 18 year(s). Which means there will be less support and parts availability for 1955 Armstrong Siddeley Sapphire. In addition, the cost of maintenance, including insurance, on 1955 Armstrong Siddeley Sapphire would be higher. At 7,734 cc (8 cylinders), 1973 Cadillac Calais is equipped with a bigger engine. In terms of performance, 1973 Cadillac Calais (208 HP @ 4400 RPM) has 83 more horse power than 1955 Armstrong Siddeley Sapphire. (125 HP @ 4700 RPM) In normal driving conditions, 1973 Cadillac Calais should accelerate faster than 1955 Armstrong Siddeley Sapphire. With that said, vehicle weight also plays an important factor in acceleration. 1973 Cadillac Calais weights approximately 415 kg more than 1955 Armstrong Siddeley Sapphire. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Compare all specifications:
| 1955 Armstrong Siddeley Sapphire | 1973 Cadillac Calais | |
| Make | Armstrong Siddeley | Cadillac |
| Model | Sapphire | Calais |
| Year Released | 1955 | 1973 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3435 cc | 7734 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 125 HP | 208 HP |
| Engine RPM | 4700 RPM | 4400 RPM |
| Vehicle Weight | 1830 kg | 2245 kg |
| Vehicle Length | 5390 mm | 5880 mm |
| Wheelbase Size | 3380 mm | 3310 mm |
