Pontiac Chieftain Deluxe 4-door Sedan (1955)

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The 1955 Pontiac Chieftain Deluxe 4-door Sedan introduced new design elements, including a more pronounced tail fin and a restyled interior. It continued to use the 3.7L inline-six engine producing 115 horsepower, making it a reliable choice for families looking for a spacious sedan.