British Leyland anyone?

If you crybabys knew Auto Glass none of the cars listed would be a problem. Face it you all are lick and stick installers. FW414 RUN!!!!!!!!!!!!

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The first fw 414 I did sucked about 1988, it looked like a gasket set but I dam sure could not push it out and what a mess it was installing the new one but it got done and I have done several since they aren't to bad just use allot of tape and take your time...The worst one I came across was the Fiat 4 door with the chrome glued in with poly sulfied and then glued to the glass then filled with the same material and on the pinchweld

Anything with sgc logo. Never got the bends correct. Usually resealed twice,mldg glued down,headliner glued to top edge of glass.done too many of these in my day.

I think my votes go to Mid 80s Audi 5000. Fiat X 1/9s. Anything Ferrari that had urethane-on moldings. The Nissan NV van is just a royal pain due to its size and encapsulation or moldings as are Freightliners. I personally am not a fan of using an Extractor on roofline or post beads.
Tough removals usually occur when design precedes the tools. The raw edge glasses like a VW Eos become much easier with a wire removal system than trying to use a combination of every other older removal tools that a tech had with him.

Ford made it hard in the 80's when it decided to go thin with urethane on Escorts or double dashboard beads on the early Taurus. Equalizer made its mark in tools during this time. The cold knife blades became thinner, sharper and multi-shaped as need adapted.