Lightyear is a tire trademark in the Cars universe. The Piston Cup Racing Series has a partnership with Lightyear, and because of this, all of its competitors are required to use Lightyear tires.
Additionally, during races, Lightyear's blimp, Al Oft, can be seen flying over the stadiums, advertising for the company.
- Lightyear is a parody of the real-life Goodyear company, which has a similar partnership with NASCAR. The name "Lightyear" is most likely a reference to Buzz Lightyear from the Toy Story franchise, another series created by Pixar.