I buy two of these seat saver for my Honda Odyssey to accommodate Britax Marathon carseat . yes , the basis be wide , but be not that the point ? the non-slip surface on the underside grip the leather very well and my car seat have no slip and slide when latch in and secure . the front flap be great for keep melting snow and ice and general muck from my kid 's shoe off the front of the seat . I wish I would buy a third for the infant car seat !