1972 Citroen SM vs. 1966 Vauxhall VX4
To start off, 1972 Citroen SM is newer by 6 year(s). Which means there will be less support and parts availability for 1966 Vauxhall VX4. In addition, the cost of maintenance, including insurance, on 1966 Vauxhall VX4 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 99 more horse power than 1966 Vauxhall VX4. (74 HP @ 5200 RPM). In normal driving conditions, 1972 Citroen SM should accelerate faster than 1966 Vauxhall VX4. With that said, vehicle weight also plays an important factor in acceleration. 1972 Citroen SM weights approximately 445 kg more than 1966 Vauxhall VX4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1966 Vauxhall VX4 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1966 Vauxhall VX4. However, in wet, icy, snow, or gravel driving conditions, 1972 Citroen SM, being front wheel drive (FWD), will offer much better control with better grip. 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, 1972 Citroen SM (237 Nm @ 4000 RPM) has 112 more torque (in Nm) than 1966 Vauxhall VX4. (125 Nm @ 2800 RPM). This means 1972 Citroen SM will have an easier job in driving up hills or pulling heavy equipment than 1966 Vauxhall VX4.
Compare all specifications:
| 1972 Citroen SM | 1966 Vauxhall VX4 | |
| Make | Citroen | Vauxhall |
| Model | SM | VX4 |
| Year Released | 1972 | 1966 |
| Engine Position | Front | Front |
| Engine Size | 2669 cc | 1596 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 173 HP | 74 HP |
| Engine RPM | 5500 RPM | 5200 RPM |
| Torque | 237 Nm | 125 Nm |
| Torque RPM | 4000 RPM | 2800 RPM |
| Engine Compression Ratio | 9.0:1 | 8.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Weight | 1450 kg | 1005 kg |
| Vehicle Length | 4900 mm | 4410 mm |
| Vehicle Width | 1850 mm | 1640 mm |
| Vehicle Height | 1330 mm | 1420 mm |
| Wheelbase Size | 2960 mm | 2550 mm |
| Fuel Tank Capacity | 25 L | 45 L |
