Fellow Dads

Single car family. Made the impulsive buy of a Power Wheel for my oldest. looked easy enough to fit in store. Took the box home and only then did I realize it wasn't going to fit in the hatch.

Got two kiddos in car seats so folding down isn't an option. no hitch/roof rack installed. Thoughts on best way to transport to nearest park (1.5mi)?

First thought was to tie it down to the roof with follow up thoughts of tying down the hatch.