Just in from Auto World: Below are the six new Thunderjet 500 cars in release #4.  These cars come with a single neo traction magnet (see pic below) which changes everything.  This is NOT your father’s t-jet. The magnet is removable for old style slipping and sliding.  You may love or hate the new chassis but you will love the selection of new cars. All colors are shown,but cases are packed RANDOMLY so there is NOT an even distribution of colors.  $15.99 each. 

Also in are six new Flamethrower (head lights) Xtraction cars, again each in two colors.  This car also comes with a new chassis that will accept a neo traction magnaet BUT the magnet is NOT incuded.  I am sure you can take it out of the Thunderjet car and put it in the Xtraction car for better stick.  Again $15.99 each.  Cars are randomly packed so there is no guarantee all colors are available.