A few days ago, Nintendo and Mattel announced new Mario Kart Hot Wheels sets. You can find the announcement with all of the details here. Here are a few new photos showing off what’s on the way: ” order_by=”sortorder” order_direction=”ASC” returns=”included” maximum_entity_count=”500″] Pre-orders for the Mario Kart Hot Wheels sets have started to open on Amazon. Currently, the retailer has...