My 1999 Ford 17years old and 140000miles?

My 1999 Ford 17years old and 140000miles? - 1

Keep driving it until it dies. If you are worried about it not lasting much longer, start saving some money to replace your car if you only have one vehicle.

My 2004 Chevy 12 years old and 190000 miles.

Congratulations. You have an old car. Doesn't make you special.