Do you understand how the new 10-plates work? If you're not sure, then let us explain.

Basically the first two letters of the plate represent what is called 'the local memory tag' which is where the vehicle was registered, so for example, a plate reading LA to LY would be London.

Next up is the 'age identifier', which is shown through the third and fourth digit; these are changed every six months in March and September. The easiest way to remember this is to think of March as the year and September as the year plus 50.

For example:

• '09' in March 2009 and '59' in September 2009
• '10' in March 2010 and '60' in September 2010
• '11' in March 2011 and '61' in September 2011
• '12' in March 2012 and '62' in September 2012

The last three letters on the plate are random.

Older plates

The old number plates are slightly different in the way they work. Example plate: A 470 TDR

The first letter is the 'age identifier' - representing the year the car was registered. This changed each year in August and after 1999 it was updated every six months instead. The third and fourth digits are random numbers as are the final three letters. From 1963 to 1983, the letter identifying the year of the car was at the end of the plate.

The original once-a-year plate change system was in place until 2001. Dealers would see a huge sales spike in August each year from drivers who wanted to be seen in the newest cars, which resulted in lower sales during the rest of the year.

This was phased out in 2001 and changed to the twice-annual number plate system which is still in place today.

A spokesperson for the DVLA has said the format will be reviewed and updated again in 2050. Looking for a particular make, model or age of car? Then call one of our Team Helpers for advice.