Germany’s Bitter, still headed by founder Erich Bitter, has rolled out its latest model, the Bitter Adam based on the Opel Adam minicar.

For those unfamiliar with Bitter, it's a small firm specializing in luxury and sporty cars, and has been in the business for just over four decades. Established in 1971 by Erich Bitter, a former race car driver who eventually started a tuning business and then went into car manufacturing, Bitter has sold its models all over the world, including in the U.S., but has never been able to escape its niche status.

This image, posted on enthusiast site Motor Talk, shows Bitter's latest model. It was taken at the recent Techno Classica 2014 classic car event in Essen, Germany where Bitter, now 80, presented the car and kicked off the launch of a new book and film documenting his life.

Like most of Bitter’s recent creations, the changes to the Opel Adam in its transformation to the Bitter Adam are minor. There is a new grille with Bitter’s signature B logo as well as custom bumpers at both ends. Inside, the car is fitted with unique floral trim and comes with a matching handbag.

Other models offered by Bitter include custom versions of the Opel Insignia and Holden Caprice sedans.