After an eleventy-billion year reign as the nation's top seller, it looks as though the Ford F-150 has stumbled for at least one month.The month of May saw the Honda Civic overtake the F-150 in sales putting the Ford down in fourth place. Whaaa!? Indeed, 42,973 F-series trucks sold in May, against 52,826 Corollas, 51,291 Camrys and 53,299 Honda Civics. Since we know Toyota counts the Matrix towards Corolla sales, we'll discount that figure, but who cares? As we called (sorta) yesterday, Civic for the win. According to Jim Farley, Ford group vice president for marketing and communications, "That's just a sign of the times. I think May has been a watershed month." Do people care about gas prices? We think this means the answer is "yes." [Automotive News (Subscription required)]