DS has nearly outgrown the back part of his turbobooster, and I have been on the hunt for a narrow booster that fits better next to the radian. I saw the literider yesterday at walmart, and had him sit in it, and then compared it too the turbo, and it actually fits inside the turbo, if that makes sense, so it is definitely narrower. Anyone have any reviews or experience with it? It'd be for my car with a high seatback, and then the turbo would go in dh's explorer.