Lexus has been caught testing a metal-roofed convertible version of its high-performance Lexus IS-F at the Nurburgring in Germany.
The prototype has the same flared wheel arches, air-vents, modified front and rear bumpers, quad tailpipes and rear wing of the sedan.
Car guru Edmunds believes the prototype's rear suspension may use an adaptation for the IS model, taken from the rear-steer 2013 Lexus GS sedan.
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