You are allowed to weld them shut if you really want to, but i have never seen a car where it was not easier to get out with the door open. Tech may and usually does ask you to demonstrate that you can get out fast, and if you can't they will ask for you to make changes.
It is also soooo much easier to work on the car when the door can open and you can reach in and around the cage. For example when you have to replace the belts, or pull the seat, or get under the dash.
Weld them if you want, but I can't find a single benefit to doing so.
One clarification, you aren't required to remove the glass. The window just has to be open. If you leave the glass in you need to have some kind of door skin in place to contain the glass if you get hit in the door. Our doors are fully stock with the glass installed because the car lives outside and we need to keep the water out.
20+ Time Loser
FutilityMotorsport Abandoned E36 Build2008 Saab 9-5Aero WagonRetired -
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