Carl has a car, it is a Dodge Stealth ES with several add-ons, including a supercharger. It constantly gets destroyed, damaged or otherwise obliterated along the episodes (from key scratching the paint to irreversible damage). The car gets destroyed many times somehow involving the Aqua Teens (most likely Shake's fault). In the first episode, this car was smashed by Rabbot, being the second thing destroyed in the series (other than Dr. Weird's lab wall); what is more: it was destroyed in the opening, before the intro. Major Shake jacks the car and gets into a car accident with it

Despite having a garage (in Carl's house), the car is often parked outside in the street.

This is actually the real car of Matt Maiellaro, the creator of ATHF. It's unknown if it's hand-drawn or placed in by Photoshop.