How many miles before I should preserve the car (mileage) . I was told by someone that Impalas are good with high miles, but my uncle says I should save the car for possible sale in the future.. Even today i see old school Impalas with low miles for sale, on display etc.(ex:1967 Impala with 27,000 miles). my car has 38,000 miles and I dont like to drive it too much , but sometimes I do like driving it around ..