These have been specifically created for the Concept GLA: their tread pattern continues the lines of the spokes in an optical illusion that makes the wheel spokes appear longer.

ENGADGET: Mercedes-Benz GLA concept puts laser projectors in headlights, redefines SUV

Tortorella's daily briefings on his team have fallen into a pattern of tense silences and clipped answers as media members tread carefully, uncertain of how he will react to a particular subject, as if there are unwritten rules that they must follow when they ask him questions.

WSJ: Tortorella Press Conference Etiquette 101