One of BMW's most anticipated models, the next-generation Z4 replacement, will soon make its world premiere on August 17 at the Pebble Beach Concours d’Elegance. The Bavarian automaker did not provide other details apart from a silhouette sketch of the upcoming Z4 and a release date.

Looking at the sketch, we get to see a concept-like silhouette of BMW's next-gen roadster. Despite being a sketch, it shows a long, sleek hood with a pointed nose at the end, identical to the prototypes previously seen by our spies. At the rear, the tail lights also have a reversed L-shaped design similar to one spotted in previous spy photos.

With BMW's upcoming roadster set to break cover soon, the next question to ask is whether Toyota will unveil the much awaited Supra soon. To recall, BMW's upcoming roadster and the Toyota Supra share the same platform and will be rear-wheel drive. The main difference between the two apart from cosmetic styling is that the Supra will strictly be a hardtop while the Z4 will have a convertible soft top.

While the teaser does show BMW's upcoming roadster, it is still uncertain whether we will see it in production guise or still in concept car form. BMW is known for unveiling concept vehicles at Concours events rather than showing the final production vehicle. Whatever BMW unveils, we will have to wait until the upcoming Pebble Beach Concours d’Elegance on August 17.