So, I ended that post about the Hopps family’s wealth with a quasi-question: With all the shiny trucks they had at their home, why would Stu prefer use this particular rust-bucket:
Or even, why Stu kept that truck, at all?
He even took good care of it. Keeping the engine running at its best. Even perhaps modding the engine to give it more zing. Witness how it ran when Judy gunned it:
It had so much torque and power, when it was underloaded, the rear wheels simply slip on loose surface.
So, why all the love for a rickety truck?
As @leon-flechette and @ryutolbx guessed: Sentimental reasons.
It’s probably bought for Stu by his dad.
It’s where Stu learned to drive.
It’s the car Stu used to drive Bonnie home from the Bunnyburrows Square Dance Gathering.
It’s where Stu & Bonnie first made out. Right there in the couch-like wide seat, unbroken by a middle console. Sized just right for two rabbits deeply in love with each other.
They probably drove away from the marriage ceremony in that truck, too.
Years later, one of their daughters probably made out with her boyfriend, for their first time, in the very same truck.