"This does take up one side of my back seat and the center also. It's big and that is what makes this comfortable for my 3 dogs that range from 4 to 6 lbs. When I got it, my dogs got so excited over it! Jumping on it, laying in it, playing on it so I am keeping it in the car so they don't think it's another bed. HIGHLY RECOMMENDED, especially for your dogs safety.
Happy Driving!"