Grand Sport features unique 18 - inch front and 19 - inch rear wheels (painted finish standard and chrome finish optional) with performance 275 / 35ZR18 tires in front and 325 / 30ZR19 tires in the rear (jdpower.com)
The seat features a structure that allows it to be stowed for creating an expansive cargo space by a single, remote operation from the rear (toyota-global.com)
Both the front and rear feature independent suspension double wishbone suspensions combined with the new Hydraulic Body Motion Control System. (en.wikipedia.org)