I've never owned a box-like car before, and I was driving long-distance last weekend going around 70-80 mph, and the drive was overall smooth, but now and then the car seems to drift a little. Don't know if it's the electric steering or not. Also, every now and then, it felt like a strong gust was pushing my car although there was no wind except my car driving. Car was checked out before I left and everything was in good order. Is this normal because of the box shape and wind resistance?