It is a trunk mount rack, meaning the rack is installed on the trunk of your car. As the manufacturer promises, this rack is designed to hold up to two bikes at a time, given that their total weight is not more than 70 lbs. The rack can fit most types of four-wheelers, including but not limited to minivans, sedans, hatchbacks, and SUVs, but for more details, feel free to ask the manufacturer about different sizes and fits.