BMW had quite the weekend during Le Mans when they pulled the covers of the all-new 8 Series Coupe. Of course, the German automaker isn't quite done with the flagship grand tourer just yet. They are set to roll out the convertible and the four-door Gran Coupe in the coming months, both of which have been leaked early.

Patent drawings reveal four-door, convertible BMW 8 Series models

Patent drawings of the of the top-down and four-door models have surfaced online, giving a clearer look as to what the cars may look like once both are officially revealed. Shown here are what appears to be the non-M Sport versions of each cars, as suggested by a less aggressive front fascia treatment. Judging by the leaked images, both the convertible and Gran Coupe share the same front end as the coupe.

Patent drawings reveal four-door, convertible BMW 8 Series models

For the Gran Coupe, the design appears faithful to the M8 Gran Coupe concept shown just a few months ago, albeit without the M-specific bumpers. Instead, it gets a slimmer piece with smaller corner air intakes. Like the coupe, the four-door gets fender air outlets, which forms the character lines on the sides. Rear-door treatment on the other hand is similar to the concept with an exaggerated version of the signature Hoffmeister Kink. At the moment, there are no patent photos of its rear.

As for the convertible, it gets soft top instead of a metal folding roof. That does mean the rear quarters of the car gets a different look. However, it does retain the high window line of the coupe, as well as its character lines.

Engines are to be shared with the coupe. That means a range of turbocharged straight-sixes and V8s. The V8 is likely to be revealed first since BMW first showed the 8 Series in M550i xDrive guise. M versions of the convertible and Gran Coupe are also underway.

Note: Finished in green is M8 Gran Coupe concept showed during the 2018 Geneva International Motor Show