Europcar were unable to tell us whether we would receive a 4WD/AWD car before picking up. They also don't fit cars with winter tyres (despite us requesting them). Both of these can be made a legal state requirement to drive on Colorado roads during winter storms, as happened numerous times during our trip. It was only through luck that we received a 4WD and so could get by without proper winter tyres. This is a huge safety issue, it's crazy to be sending people out driving on Colorado roads in the middle of winter without winter tyres.