Deductions & credits

So I'm a little confused still I think...

 

I never wrote off anything but the standard mileage deduction each year.  (In other words, I never captured any depreciation for my car.  I just multiplied miles driven by the rate each year and wrote that off.)

 

So when I sell my car, do I need to do anything?  Perhaps recapture a portion of the mileage?

 

Seems weird I'd have to recapture any of the sale price of the car when I never wrote off any of the purchase price...