Possible Clues:

• Rangers, Pacers and Corsairs on 1950s lots
• 1950s autos
• Group with the 1961 hit 'Rama Lama Ding Dong,' with 'the'
• Famed four-wheel failures
• Unpopular debuts of 1957
• 1950s Fords
• Cars named for Henry Ford's son
• Unpopular Fords of the late 1950s
• Cars whose ''thrill starts with the grille''
• Fords that didn't last