man, dont bother with the car ride trick. it seems like youre handling your ball too much and you need to leave him alone.

in another forum you mentioned how you moved him from and old enclosure to a new bigger one and then back to the old one during his "hunger strike". you also mentioned the snake is 900g and eating hoppers and/or adult live mice. you 've also soaked him a few times cuz you think hes constipated.

if you want him to eat you need to provide him with some sort of consistency. stop the handling, find a size feeder to stick with, and pick ONE day of the week that you attempt to feed on and only that day every week. until he starts eating regularily try these things out. i dont mean after the first successful feed start swinging him around like a rope, im sayin after at least a month or even two of successful feeding attemps then start your regular handling of the snake.

if hes not eating in the enclosure he wont eat while driving around town. try something else first. good luck!