Following the debut of the BMW Z4 Concept, patent images for the upcoming production model have surfaced courtesy of Dutch website AutoWeek, which appear to show the new roadster from all angles. Developed in conjunction with Toyota, the Japanese automaker will have its own model, the Supra.

The Bavarian manufacturer has also released initial, official details of the forthcoming roadster, which confirmed that a M40i variant will take its place at the top of the new Z4 line-up. This will be powered by a 3.0 litre turbocharged inline-six petrol engine, most likely paired with an eight-speed automatic gearbox driving the rear wheels.

The rear axle on the M40i will feature an electronically-controlled limited-slip differential, and this rear axle is the same as that on the M3 and M4, according to Autocar. Meanwhile, a four-cylidnder model in the guise of a 30i variant will be powered by a 2.0 litre inline-four turbo also mated to an eight-speed automatic transmission, while a future hybrid model will likely be offered with all-wheel drive.

Here, the patent images for the upcoming Z4 confirm that it will wear design details productionised from the Z4 Concept, with softer edges throughout. The tail lamp design retains its L-shaped visual cue, which is shared with the likes of the G02 X4 and the and the Concept 8 Series.

The replacement for the E89 Z4’s replacement, like its Toyota Supra sibling, has been a long time in the making. This third-generation car ‘will offer a tangible increase in sporty flair’, said BMW of its findings from testing. Its first public debut is set for Pebble Beach, with full details due to emerge at the Paris motor show after that. Like what you see so far?

GALLERY: BMW Z4 prototype