I have a large crate with a divider, which fits in the boot with the back seat folded down. I use this when i,m travelling to Aberdeen.It's great cos sasha would sit on my head if she had half the chance. or her other favourite place the dashboard. sasha does whinge abit but it is a 5-6hr journey for us. for local going places I have two soft crates which fit in the boot, they are not in these for longer than 20mins.