Spotted an oval/round UFO hovering lower than a plane would outside my apartment.

Was in my garage putting my weights away when I looked outside and spotted what appeared to be a flying object. Upon opening my door, I realized it wasn't a plane - it was flying much lower than that. It appeared to be almost like a flying SUV, sort of oval-shaped, but there were no wheels. There were windows on the side and bright lights on the bottom that were either white or light blue. I could tell which part was the front of the UFO, like how you can tell where the engine is on a car. When I went to take a picture, it flew away, leaving sort of like a trail or a plume of smoke behind it.