My first car was a '72 Vega GT.
By 1976, there was moss on the floor pan in the back seat.
Granted, Michigan is a rust-friendly state, but the windshield moulding rusted from the inside out in less than 2 years. Made for a fun time when driving in the rain.
In defense of the car, with the wide oval 'stones that were standard, it held the road really well.
'73 had the "GT" call-outs, '72 didn't.