2007 Alfa Romeo Spider vs. 1972 Citroen SM
To start off, 2007 Alfa Romeo Spider is newer by 35 year(s). Which means there will be less support and parts availability for 1972 Citroen SM. In addition, the cost of maintenance, including insurance, on 1972 Citroen SM would be higher. At 3,194 cc (6 cylinders), 2007 Alfa Romeo Spider is equipped with a bigger engine. In terms of performance, 2007 Alfa Romeo Spider (256 HP @ 6300 RPM) has 83 more horse power than 1972 Citroen SM. (173 HP @ 5500 RPM). In normal driving conditions, 2007 Alfa Romeo Spider should accelerate faster than 1972 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 2007 Alfa Romeo Spider weights approximately 315 kg more than 1972 Citroen SM. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Alfa Romeo Spider is four wheel drive (4WD), it will have significant more traction and grip than 1972 Citroen SM. In wet, icy, snow, or gravel driving conditions, 2007 Alfa Romeo Spider 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. Let's talk about torque, 2007 Alfa Romeo Spider (322 Nm @ 4500 RPM) has 85 more torque (in Nm) than 1972 Citroen SM. (237 Nm @ 4000 RPM). This means 2007 Alfa Romeo Spider will have an easier job in driving up hills or pulling heavy equipment than 1972 Citroen SM.
Compare all specifications:
| 2007 Alfa Romeo Spider | 1972 Citroen SM | |
| Make | Alfa Romeo | Citroen |
| Model | Spider | SM |
| Year Released | 2007 | 1972 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3194 cc | 2669 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 256 HP | 173 HP |
| Engine RPM | 6300 RPM | 5500 RPM |
| Torque | 322 Nm | 237 Nm |
| Torque RPM | 4500 RPM | 4000 RPM |
| Engine Bore Size | 89 mm | 87 mm |
| Engine Stroke Size | 85.6 mm | 75 mm |
| Engine Compression Ratio | 11.3:1 | 9.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Front |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1765 kg | 1450 kg |
| Vehicle Length | 4230 mm | 4900 mm |
| Vehicle Width | 1840 mm | 1850 mm |
| Vehicle Height | 1320 mm | 1330 mm |
| Wheelbase Size | 2530 mm | 2960 mm |
| Fuel Tank Capacity | 69 L | 25 L |
