ROYAL OAK, Mich. -- You can taste the support for the Big Three at AJ's Café in Ferndale, Mich.

Manager AJ O'Neil is offering customers a free cup of joe if they promise their next car will be from one of the struggling domestic automakers, reported WDIV-TV in Detroit.

O'Neil said the deal is all about trust and promises.

"I trust that the automotive companies here in Detroit and around America are going to build an environmentally sound, good-looking, economic car, and it's going to be something I will want," said O'Neil. "I'll buy it, and if they make that promise and if they make that promise to me, I'll give them a cup of coffee for free."

AJ's Café on 9 Mile Road north of Detroit started its Promise campaign Wednesday morning and has already had dozens of people sign up and sip.