kirban 2 cents worth
I know the answer to your question:
Buick never produced floor mats embroidered with the T logo or T Type logo on the floor mats for the Regal body. However, for the front wheel drive version T-Type LeSabre which is an entirely different size floor mat they made an embroidered floor mat that had what is best described as a half finished power 6 logo. I am going by memory on the description on the LeSabre floor mats.
Turbo floor mats had a GM logo on the passenger side small block lettering and nothing on the drivers side. Made two versions (formats) they were color coded to match your interior.
Years ago companies liek Bowling Green Customs made logo floor mats and Auto Custom carpets makes embroideed floor mats as we stock the GN and GNX versions and turbo versions but noting with T or T-Type although they may be licensed to do so. Point is GM never did it from the factory.
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