Buick created a suite of smartphone games to educate consumers on the benefit of e-Assist, the fuel-saving technology that powers the Regal and Lacrosse. Regeneration Road and Roll & Boost require users to navigate through a course on one tank of gas, showcasing the power of regenerative breaking. Wind Tunnel Tester tests your engineering chops, as players redesign the body of the cars to see the impact on fuel efficiency. Well thought-out and executed and engaging, the games became popular in the iTunes store, earning a four-star rating.