BMW traditionally designs its own production and concept cars in-house, but has lately been seeking some outside influence. At last year’s Concorso d’Eleganza Villa d’Este (which the Bavarian automaker incidentally sponsors), BMW revealed a concept based on the Z4 created in partnership with Zagato. And at this year’s Concorso, it will unveil a new concept designed with Pininfarina. Previewed in this set of teaser renderings, the BMW Pininfarina Gran Lusso Coupe concept.