One of the best Motorific accessories.  This accessory came with the "Super Speed" set.  A miniature record player sits inside the mountain landscape.  When a car went the wrong way through the turn, it would crash through the sign and smash into the tree. Click the icon below the picture to hear the "real crash sound" of Terror Turn!

There were all kinds of  Motorific spin-offs.  "Boaterific" motorized boats; a "Racing Car" series; and "Computer Cars."  There were also robots called, "Zeroids."  Please contact me for more info or to make a deal!