▁Track ▁is ▁a ▁high - speed ▁slot ▁car ▁dark ▁ride ▁on ▁the ▁eastern ▁side ▁of ▁Future ▁World ▁at ▁E pc ot , ▁a ▁theme ▁park ▁at ▁the ▁W alt ▁Disney ▁World ▁Res ort ▁in ▁Bay ▁Lake , ▁Florida . ▁The ▁ride ▁is ▁a ▁sim ulated ▁exc urs ion ▁through ▁the ▁rig orous ▁testing ▁procedures ▁that ▁General ▁Mot ors ▁uses ▁to ▁evaluate ▁its ▁concept ▁cars , ▁cul min ating ▁in ▁a ▁high - speed ▁drive ▁around ▁the ▁exterior ▁of ▁the ▁att raction . ▁ ▁The ▁att raction ▁soft - open ed ▁to ▁the ▁public ▁on ▁December ▁ 1 9 , ▁ 1 9 9 8 , ▁after ▁a ▁long ▁delay ▁due ▁to ▁problems ▁revealed ▁during ▁testing ▁and ▁to ▁changes ▁in ▁design . ▁As ▁a ▁result , ▁the ▁att raction ▁officially ▁opened ▁on ▁March ▁ 1 7 , ▁ 1 9 9 9 . ▁Test ▁Track ▁replaced ▁the ▁World ▁of ▁Mot ion ▁ride . ▁▁ ▁Origin ally , ▁guests ▁rode ▁in ▁" test ▁vehicles " ▁in ▁a ▁G M ▁" testing ▁facility " ▁through ▁a ▁series ▁of ▁assess ments ▁to ▁illustrate ▁how ▁autom obile ▁prototype ▁evalu ations ▁were ▁conducted . ▁The ▁highlight ▁of ▁the ▁att raction ▁is ▁a ▁speed ▁trial ▁on ▁a ▁track ▁around ▁the ▁exterior ▁of ▁the ▁building ▁at ▁a ▁top ▁speed ▁of ▁ 6 4 . 9 ▁miles ▁per ▁hour ▁( 1 0 4 . 4   ▁km / h ) ▁making ▁it ▁the ▁fast est ▁Disney ▁theme ▁park ▁att raction ▁ever ▁built . ▁ ▁Test ▁Track ▁closed ▁for ▁ref urb ishment ▁on