Well I might just add a secondary attachment method then; it's held to the chassis by servo tape right now. And your experience gives me confidence in the toughness of this GPS, though hopefully I never have to go chasing for one after a hit
Mine is the bigger one with the display. You's might very well be fine under the body, stuck to the chassis.
The first time we put mine back together and it still worked I was happy.
The second time I was ecstatic.
The third time I was astounded because it really splattered itself across all over the street. We picked up the parts, snapped it back together, and it worked.
Pretty good for a $20 device!