This, put into the floor or block of wood. Drive up to it, just till you tap it. Then stop. Resist the urge to back up.

This, put into the floor or block of wood. Drive up to it, just till you tap it. Then stop. Resist the urge to back up.

Edit - I changed from a driveway marker image to my 'in the wild' image from my garage. I made 2 of these, and have used both for 10+ years. It's positioned to both protect the steps from getting smashed and to allow enough clearance to walk in front of the car.