Eagle-eyed Carscoop reader Florian M. sent us these pictures of a heavily disguised 2013 Lexus GS prototype that he spotted at a rest area on a highway in France.

Lexus has been thoroughly testing the next generation of its mid-size premium sedan on both sides of the Atlantic, and it has also introduced the car to select media outlets for a first drive.

We will get our first view of the production model in exactly one week from now with the presentation of the GS 350 at the Pebble Beach Concours d’Elegance on August 18th, while Lexus will lift the wraps off the hybrid variant at the Frankfurt Motor Show in mid-September.

Many thanks to Florian for the pictures!

PHOTO GALLERY