I don't know what to tell you. my car's even lowered 1.5" and I have no clearance issues whatsoever, going over multiple inclines and speedbumps at both work and home. let's see a picture of your driveway? I am thinking your driveway is built very oddly or you just don't drive carefully enough.
time to own up and pay for your mistake instead of blaming the car imo. if your driveway is that steep of an incline you need to take it slow and at an angle.