1967 Alfa Romeo Spider vs. 1972 Citroen SM
To start off, 1972 Citroen SM is newer by 5 year(s). Which means there will be less support and parts availability for 1967 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1967 Alfa Romeo Spider would be higher. At 2,669 cc (6 cylinders), 1972 Citroen SM is equipped with a bigger engine. In terms of performance, 1972 Citroen SM (173 HP @ 5500 RPM) has 10 more horse power than 1967 Alfa Romeo Spider. (163 HP @ 5900 RPM) In normal driving conditions, 1972 Citroen SM should accelerate faster than 1967 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 1972 Citroen SM weights approximately 120 kg more than 1967 Alfa Romeo Spider. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1972 Citroen SM (237 Nm @ 4000 RPM) has 17 more torque (in Nm) than 1967 Alfa Romeo Spider. (220 Nm @ 4000 RPM). This means 1972 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 1967 Alfa Romeo Spider.
Compare all specifications:
| 1967 Alfa Romeo Spider | 1972 Citroen SM | |
| Make | Alfa Romeo | Citroen |
| Model | Spider | SM |
| Year Released | 1967 | 1972 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2582 cc | 2669 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 163 HP | 173 HP |
| Engine RPM | 5900 RPM | 5500 RPM |
| Torque | 220 Nm | 237 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 83 mm | 87 mm |
| Engine Stroke Size | 79.6 mm | 75 mm |
| Engine Compression Ratio | 9.0:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1330 kg | 1450 kg |
| Vehicle Length | 4510 mm | 4900 mm |
| Vehicle Width | 1610 mm | 1850 mm |
| Vehicle Height | 1390 mm | 1330 mm |
| Wheelbase Size | 2510 mm | 2960 mm |
| Fuel Tank Capacity | 47 L | 25 L |
