The Thunderbird is going the way of the LTD, Bronco and Festiva. Ford says its ending production of Thunderbirds at the end of July. Sales soared when the redesigned 2002 T-Birds hit the lots, and some buyers were willing to pay ten-thousand dollar premiums on top of the car's 30-thousand dollar sticker price. Sales then stalled. Ford says it has sold more than 54-thousand new-generation Thunderbirds since 2001. The model, one of Ford's most celebrated nameplates, first went on sale in 1954. The Michigan plant that makes T-Birds will keep churning out Lincoln Town Cars and be the final assembly point for the Ford GT supercar.