AutoWorld Xtraction Release 6 is introducing 6 all new body castings to the product line.  In addition these cars are available with either a racing chassis or a free wheeling chassis.  The Freewheeling chassis does NOT include an armature, brushes, magnets, pickup shoes or springs, or a guide pin. Pop the body off the empty chassis to use on the X-Traction or X-Traction Ultra/G chassis you already own!