This video shows a 3-across car seat install in a compact Mercedes 250CLA. The car seats used for the video are the following: Clek Liing Infant Seat, Nuna Exec Car Seat & Graco Slimfit 3LX Car Seat. Customers frequently ask us if this kind of thing is possible in a smaller car so we did this video as a demonstration and for fun. This video is not intended to substitute for reading the instruction manuals that come with your car seats & vehicle.