Just a massive coincidence. Extremely unlikely things happen all the time, believe it or not. You don't really think that some mysterious deity heard you say that about your car, and because it felt like being a *******, decided to break your car as punishment for your smugness?
There's a statistical chance of someone's car breaking down, that's it. The fact that you spoke of your success with cars earlier on was just coincidence. Spooky, but non-consequential.
Clearly the tone and "!!11" didn't give away the mild sarci ¬_¬