EL SEGUNDO, Calif.--(BUSINESS WIRE)--Mattel, Inc. (NASDAQ: MAT), a leading global toy and family entertainment company and owner of one of the most iconic brand portfolios in the world, today announced a collaboration between its Mattel Brick Shop™ line, Hot Wheels®, the number one selling toy in the world*, with quattro GmbH and Auto Union GmbH, both subsidiaries of AUDI AG. The collection includes two new vehicle building sets: an Audi Avant RS2 in 1:32 scale and the Audi R8 LMS in 1:16 scale. ...