Citroen has released a new teaser image of the Cactus M concept.

Set to be debut at the Frankfurt Motor Show, the concept is a convertible that is based on the C4 Cactus and draws inspiration from the Méhari.  

The picture doesn't reveal much about the car itself but we can see it features a blue exterior with what appears to be a wooden rear spoiler.  Additional styling details are hard to make out but the concept looks like it has dark blue seats with 'floating' headrests and light blue piping.

The concept will be introduced on September 2nd, so stay tuned for full details.