Florida Grandma Retires Her ’64 Mercury Comet After 576,000 MilesFlorida Grandma Retires Her ’64 Mercury Comet After 576,000 MilesGo ahead and brag about your 10-year-old car. Rachel Veitch can beat that — the 93-year-old grandmother has had her Mercury Comet Caliente for almost half a century.Shauna WrightShauna Wright