Back to the Future

In 1985, teenager Marty McFly accidentally found himself behind the wheel of Doc Brown's latest invention -- a super-customized DeLorean retrofitted with a portable plutonium-powered nuclear reactor which sent him hurtling through the veil of time 30 years into the past to help his parents fall in love.

Doc explained to Marty that the car's stainless-steel construction helps with flux dispersal, an aid necessary for time traveling.  When he later traveled forward to the future, Doc took the DeLorean concept to all new heights.  Modified and futurized with a simple hover conversion from the year 2015, enabling the DeLorean to defy gravity as well as the time barrier.