Mattel Hot Wheels Hybrid Racers. 2008 Manufactured in Thailand. Five 2 5/8 Inches to 3 Inches Racing Cars, all with an Environmental Hybrid Theme. Included are Autonomy Concept, Solar Reflex and One that looks like a Fuel Cell. Because the Box is Sealed, I can't read all the names or trademarks on Bottom of Racers. Box is Factory Sealed So Racers are completely unused.