BMW has previewed the next chapter in its sports roadster story, unveiling the Z4 Concept at the Pebble Beach Concours d’Elegance.

In true concept car fashion the form and details are exaggerated to almost cartoonish proportions but according to BMW Senior Vice President Group Design, Adrian Van Hooydonk, the Concept Z4 follows the recent 8 Series Concept and “expresses the new BMW design language…from the dynamic-looking front to the striking flanks and clean-cut tail end.”

BMW Z4 Concept convertible

The new Z4 returns to its roots by ditching the heavy, complicated folding hardtop and reverting to an electronically-operated soft top with the aim of keeping weight to between 1350-1430kg, a saving of 45-95kg depending on engine and specification.

BMW Z4 Concept rear

Sadly, Munich’s press folk have quashed any talk of a Z4M using the 331kW/550Nm engine from the M3/M4, as the amount of mechanical surgery required would push the price too high into Porsche Boxster S/Audi TT RS Roadster territory.

BMW Z4 Concept interior

The new Z4 is expected to go into production in 2018. Any talk of cost is purely guesswork at this early stage, however it’s believed Munich is keen to keep prices roughly comparable to the previous model which was discontinued in August 2016. We’ll bring you more information as it comes to hand.