The Lexus hoverboard (Slide) is constructed from an insulated core, containing HTSLs (high temperature superconducting blocks). These are housed in cryostats - reservoirs of liquid nitrogen that cool the superconductors to -197°C. The board is then placed above a track containing permanent magnets. When the board is cooled to its operating temperature the track’s magnetic flux lines are ‘pinned’ into place, maintaining the hover height of the board.

According to the NBC report, Lexus put together a special skate park in Barcelona, Spain, to show off the Slide — but hidden underneath the concrete are a number of pre-laid tracks that the hoverboard will travel along - so they kind of cheated a bit, but no worries, it's still pretty darn cool even if it is only following hidden tracks. After all it is actually hovering! Where we are going we don't need roads!