For todays activity I took some inspiration from the meth heads that overload their cars when shopping at Home Depot and made myself a 'ghetto' roof rack from bits of old wood and cable ties
Successfully load rated to 225lbs abd speed rated to 70mph
Car was full too!
They're soakaway crates, which are stacked/inter locked together, then wrapped in a permeable membrane blanket, throw the lot into a big hole in the ground, pipe in all the roof rainwater and the water soaks away back into the earth