I find an 8x10 easier to move (my Marshall VBC810 has tiltback wheels) than leaning forwards and lifting/carrying my 4x10, so long as it's mostly flat ground.
I carry mine in a Toyota HiLux 4x4 on the back seat, just align it sideways with the door and push it over and slide it in on the back seat.
My cab has metal slide rails on each side of the back, so you can roll it up to the stage and lean it back and slide it up onto the stage.
The 4x10 kills my back trying to waddle like a duck carrying it to the wagon, and it seems to gain weight towards the end of the gig.