Values of used prestige cabriolets have fallen to an unprecedented low, according to Glass’s.

It said one-year-old prestige drop-tops are worth up to 24% less than this time last year.

The news comes as BCA says it expects "a great turn out" for its first convertible sale of the year, which will feature cabrios from Lloyds TSB Autolease.

The Blackbushe open sale auction will take place on March 11 and will see around 100 convertibles for sale .

“Prices are already stabilising, and for many models they will now rise, month-on-month, until July or August as a consequence of an expected modest uplift in demand as the weather improves," said BCA's Tim Naylor.