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A 93-year-old grandmother from Orlando, Florida may be the ultimate road warrior.

In nearly 50 years of ownership, Rachel Veitch has put more than 576,000 miles on her 1964 Mercury Comet Caliente since purchasing it new for $3,289 in February, 1964 in Sanford, Fla. The Caliente may have more mileage remaining, but last month, Veitch made an announcement. She's done driving.

"I know I'm not safe enough to drive," she tells Fox News. "But I have taken it in stride."

Veitch is now legally blind and suffering from macular degeneration in both eyes. In the video above, she reveals the secret of how the car outlasted three marriages.

"Never lied to me, never cheated on me, and," she said, "I can always depend on it."