Originally Posted by
ZERACER
I remember back in the 60s and 70s you were lucky to get 5 years out of a convertible top. The rear window and seams both went. Spent many a winter with snow in the boot and little heat.

So true. Speaking of (no) heat (@ 6,500 feet el.) my first car ('67 Mustang coupe bought in '71) blew it's heater core in winter. Had to bypass it & froze my tail off for months & no defrost!
Wife's "dream" sports car had to be convertible, so in April/2005, her beloved Roadster was IT. After all, we hadn't had a brand new car in 19 years, so I couldn't argue the convertible part! Even the top on the convertible '05 Mustang (with glass rear window), looked cheap in comparison.
I believe that when car makers began using safety glass rear windows & electric defrost in convertibles (early 2,000's?), most (especially some imports) were doing their research to insure an extended & accectable lifespan of the top and window, through improved design and quality control.
Unfortunately, even though primarily German, somehow our Crossfire Roadsters didn't get it right. Still: it is our pride and joy. Chrysler Corp. never "got it" either! Too bad for them!