Hi Chris, I have an AWD and below the boot floor is the spare wheel, jack and tools - so there is no way to lower the boot floor. That said, the wheel can be removed and the tools sit inside a removable lightweight carrier - take those out and you're down to the car floorpan. So, if you needed a deeper boot in an emergency - I guess it can be done - just don't get a puncture! :)Hope this helps.