well from what i have herd the AH12 my be a bit better on asphalt then carpet. but the Yok Worlds Ed is also on of if not the top asphalt 12th scale. so your car might work pretty well from the start. i think the worlds hass a bit different chassis layout, like the batteries slots moved further from the middle. so if your used to that suspension i would just grab a worlds converson and call it good.