1966 Alfa Romeo Spider vs. 1945 Armstrong Siddeley 16
To start off, 1966 Alfa Romeo Spider is newer by 21 year(s). Which means there will be less support and parts availability for 1945 Armstrong Siddeley 16. In addition, the cost of maintenance, including insurance, on 1945 Armstrong Siddeley 16 would be higher. At 2,582 cc (6 cylinders), 1966 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 1966 Alfa Romeo Spider (163 HP @ 5900 RPM) has 93 more horse power than 1945 Armstrong Siddeley 16. (70 HP @ 4200 RPM). In normal driving conditions, 1966 Alfa Romeo Spider should accelerate faster than 1945 Armstrong Siddeley 16. With that said, vehicle weight also plays an important factor in acceleration. 1945 Armstrong Siddeley 16 weights approximately 195 kg more than 1966 Alfa Romeo Spider.
Compare all specifications:
| 1966 Alfa Romeo Spider | 1945 Armstrong Siddeley 16 | |
| Make | Alfa Romeo | Armstrong Siddeley |
| Model | Spider | 16 |
| Year Released | 1966 | 1945 |
| Engine Position | Front | Front |
| Engine Size | 2582 cc | 1989 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 163 HP | 70 HP |
| Engine RPM | 5900 RPM | 4200 RPM |
| Engine Bore Size | 83 mm | 65 mm |
| Engine Stroke Size | 79.6 mm | 100 mm |
| Engine Compression Ratio | 9.0:1 | 7.0:1 |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1330 kg | 1525 kg |
| Vehicle Length | 4510 mm | 4770 mm |
| Vehicle Width | 1610 mm | 1730 mm |
| Wheelbase Size | 2510 mm | 2930 mm |
