This series was released in 2008. For this series, Mattel went outside the company and got designers from automakers Ford, Mitsubishi, Chrysler (Dodge), Lotus, Honda, and GM (Chevrolet) to design a Hot Wheels casting. Hot Wheels designer Jun Imai designed the last casting in the series, HW40.
|Toy #||Model Name||Year||Series||Photo|
|M3305||Gangster Grin||2008||Designers Challenge|
|M3311||Mitsubishi Double Shotz||2008||Designers Challenge|
|M3312||Dodge XP-07||2008||Designers Challenge|
|M3313||Lotus Concept||2008||Designers Challenge|
|M3314||Honda Racer||2008||Designers Challenge|
|M3306||GM Chevroletor||2008||Designers Challenge|