2002 Alfa Romeo 147 vs. 1973 Citroen SM
To start off, 2002 Alfa Romeo 147 is newer by 29 year(s). Which means there will be less support and parts availability for 1973 Citroen SM. In addition, the cost of maintenance, including insurance, on 1973 Citroen SM would be higher. At 3,179 cc (6 cylinders), 2002 Alfa Romeo 147 is equipped with a bigger engine. In terms of performance, 2002 Alfa Romeo 147 (246 HP @ 6200 RPM) has 75 more horse power than 1973 Citroen SM. (171 HP @ 5500 RPM). In normal driving conditions, 2002 Alfa Romeo 147 should accelerate faster than 1973 Citroen SM. With that said, vehicle weight also plays an important factor in acceleration. 1973 Citroen SM weights approximately 90 kg more than 2002 Alfa Romeo 147.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2002 Alfa Romeo 147 (300 Nm @ 4800 RPM) has 63 more torque (in Nm) than 1973 Citroen SM. (237 Nm @ 4000 RPM). This means 2002 Alfa Romeo 147 will have an easier job in driving up hills or pulling heavy equipment than 1973 Citroen SM.
Compare all specifications:
| 2002 Alfa Romeo 147 | 1973 Citroen SM | |
| Make | Alfa Romeo | Citroen |
| Model | 147 | SM |
| Year Released | 2002 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 3179 cc | 2670 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 246 HP | 171 HP |
| Engine RPM | 6200 RPM | 5500 RPM |
| Torque | 300 Nm | 237 Nm |
| Torque RPM | 4800 RPM | 4000 RPM |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1360 kg | 1450 kg |
| Vehicle Length | 4220 mm | 4900 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1330 mm |
| Wheelbase Size | 2550 mm | 2960 mm |
| Fuel Tank Capacity | 63 L | 25 L |
