Victor and the Vroom

Victor looks similar to the other cars in his class, but under his hood is an engine that sounds like no one else's: VROOM ZOOM TIKKA TAKKA REV REV ZIKKA ZAKKA His engine helps him do interesting things the other cars can't, but the sound also gets him in a lot of trouble. Should Victor fix his engine? Or does the engine sound exactly the way it's supposed to?