I built a camping trailer and towed it to Arizona

[dogsridewith]

(for towing a Yaris...maybe)
There's a big eyebolt in the trunk that screws into the right side of the front bumper. Weld same socket for same eyebolt on left side of bumper.
Aim central axis of each eyebolt eye horizontally.
Now a typical sort of forked towbar can be fitted to a ball on the tow vehicle and swing vertically on the eyebolts so the towed and tow vehicles can move as they need to in road slope transitions, but stay in one track.
(Not advice, but something I'd consider for my own vehicle...I'd like to have two tow points at each end of the car in any case...like cars used to have.)