The WFC-S4 Autobot Race Car Patrol figures Roadhandler and Swindler convert in 3 and 5 easy steps from robot mode to race car modes. Their race car modes combine to form the Multi-Mech Particle Exhaust Cannon weapon accessory. Use the weapon mode to equip other Siege figures with larger mission loadouts and use Fire Blasts (not included, sold separately with Battle Masters figures) to simulate blasterfire or explosions firing from the end of the Multi-Mech Particle Exhaust Cannon weapon mode.