So the good cars will always sell, whatever the weather, prevailing conditions, time of the month or whatever.

Sometimes though the availability and prices of used cars can change on a seasonal basis. So as well as having your wits, facts and figures about you, don't forget to consult the calendar and tap the barometer app. Traditionally the fortunes of the new and used car markets have been linked to the change of registration plate, creating an artificially high demand for new cars and to help pay for them, a larger number of part exchanges flood into the car trade.

This situation provides a variety of opportunities for the buyer after a bargain. However, though a plenty of other major, minor and often quite mad factors.

If you can be patient, anticipate and take advantage of the seasonal swings and roundabouts, good – here’s your month-by-month guide.

Want to browse the classifieds yourself? Our sister sites PistonHeads and WhatCar? have some fantastic deals and used reviews.