A self preformed repair on an automobile by, an inexperienced person, that goes horribly wrong or takes excessive time to complete.
Damn, dude taking apart my bimmer was a fucking cartastrophe.
by manfromjapan April 01, 2009
The tragic event that occurs when, after purchasing a car or other vehicle, you realize that you have made the wrong decision. This typically follows a carnundrum.
My husband, after months of deliberation, bought the wrong car. He went from a carnundrum to a car-tastrophe.
by Rebecca Mackinlay April 24, 2008