BMW Eco Sports Car Concept

It's set to be one of the surprises of the show! Announced last week by BMW board member Dr. Klaus Draeger, BMW is ready to demonstrate how efficient a sports car can be. It will also prove that sustainability does not apply to the drive train alone, but to design and materials as well.

Expect lightweight materials everywhere and a super slippery shape. The styling may well take inspiration from the stunning Homage concept shown here. But whatever shape it takes one thing's for certain, it will provide an insight into the cleaner and greener BMW products of the future.

And tying in with the environmental theme - hybrid versions of the 7-series and X6 are expected to debut in Frankfurt, too.