SimCopter wasn't the only game that allowed you to import from SC2k -- the city import is the only notable feature of the otherwise-unremarkable Streets of SimCity[0].
Streets of Sim City was great. I'd use a bug to create glitchy self-intersecting bridges I called "super springs" which launched cars straight up. The AI certainly didn't know what to make of that.
Streets of SimCity was great for making an outrageous racket by using the increased gravity cheatcode. Every polygon intersection would trigger the "suspension crashing" sound effect. Fantastic fun.
[0] https://en.wikipedia.org/wiki/Streets_of_SimCity