i have them both right now and yes the X1 does sit a good 3 inches higher then the 1 series. i need to put my hand on the door shill and push up to get out of the E88 and the X1 is just a easy as stepping out. but i have also lowered my E88 so it really feels like you need to climb out of her. love both of them because they are completely different cars with completely different driving styles