A cabriolet version of the Vauxhall Adam is in development, senior Opel-Vauxhall sources have confirmed.

The open-air Adam is conceived as a rival to the Citroën DS3 Cabrio and Fiat 500C and is set to get a pram-style electric folding roof. A tentative on-sale date of late next year has been mooted.

Citroën sources have also confirmed that the DS3 Cabrio line-up is set to expand with a range of spin-off and special-edition models, including a range-topping DS3 Cabrio Racing variant producing around 200bhp.