We have been driving our 40' motorhome around Mexico most winters for the past 10 years. There can be places where space is tight but we seem to always find a way. Parks and spaces in Mexico are often smaller than in the US - but then many spaces in places like US National Parks can be small also. Roads in Mexico tend to be narrower and may have more curves than the US - and turns may be tighter - but we still survive. Smaller can be better but we live in our Bus full time so it is our house so we feel we need the space. We also tow a car which we use to do much of our exploring.