I have an older Ring doorbell

I have a Ring doorbell 2. It picks up cars driving down the street outside of the motion zone but doesn’t pick up people sometimes that are in my driveway in the motion zone.

Hi @user43492. How high is your doorbell positioned? Are there steps or a hill leading up to the doorbell? Is the sun shining directly on the doorbell? These are factors that can be contributing to how motion is being detected.