My wife loves listening to Click and Clack, the Tappet Brothers. She often tells me about their callers' stories since I don't listen to the radio much. Apparently she hasn't heard this one yet, or I would have known about it. Even she knows a 912E has no radiator.
I just heard them reading a letter from a listener who wants to start a boycott of the show because they don't have a "Puzzler" all year 'round. The funny part is that she asked them to read the letter on the air so people will know about the boycott.
Another good one is the mechanic from a Quick Lube place who wrote in to tell them about a car they worked on that had a stuck engine lid (hood). The woman had asked Tom and Ray what to do and they told her to go get an oil change and act dumb when they couldn't open the hood. The shop wasted nearly an hour and lost two customers, so they wanted Click and Clack to ante up the $50 they lost.