The German manufacturer will likely retain the polarising grille seen on the 4 Series Coupe, revealed earlier this year.
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New images have emerged of the upcoming 2021 BMW 4 Series Convertible.

Published by China's National Intellectual Property Administration – and revealed through Autoblog – the rendered design drawings suggest BMW is planning to replace the current generation retractable metal roof with a more traditional (and lighter) soft top.

Earlier this year a prototype of the model was spied testing at the Nürburgring.

The vehicle, which is built on BMW's CLAR platform, bears the same polarising grille seen on the recently-launched 4 Series Coupe.

Assuming it also carries across the coupe’s engine range, the droptop will be offered with three different powertrains in Australia.

At the entry level there is the 2.0-litre four-cylinder engines for the 420i and 430i, delivering 135kW and 300Nm, and 190kW and 400Nm, respectively.

The 3.0-litre inline six-cylinder M440i xDrive tops the range, developing 285kW and 500Nm.

All three powertrains are paired with an eight-speed torque converter automatic transmission.

The 2021 BMW 4 Series Coupe is priced from $70,900 plus on road costs, and customers can expect the convertible variant to start at around $90,000 for the entry-level 420i.