Used Lexus IS for Sale in Riverview, FL - CarGurus
For a used IS or really any toyota/honda how many miles is "too many" when the car is like 10 yrs old?
On average estimate 15k miles per year as the standard. Lexus has a superior service record and dealership experience.
So no worries there.
The maintenance history is more important than miles. So check there first.
As a defecto rule... you want to stay under 10 years old and 85K for most used cars.
Things naturally wear all the way out by 20 years.
I would either go American SUV or Japanese car.