I am interested in buying a set of removable floor mats for my 1966 OTS to protect the carpet

. What company sells this with the best fit and quality?

 

I only use Coco Mats in all my vintage cars. One cannot beat the quality and fit.
https://www.cocomats.com

My 1964 356 SC is bright red with black interior and this is what I have inside. Makes the inside pop when you open the doors rather than a dark cave like interior. Picture off the Coco Mats site.

 

Moss Motors? Black, embroidered with Logo, made to fit, not terribly expensive.

 

The Moss ones are either the solid black rubber:

https://mossmotors.com/646-790-cp-ja...fault_products


or the black carpeted ones with the logo:

https://mossmotors.com/240-780-plush...vM2xYwfsCHVAC8

The issue with these carpeted/logo mats, is that they are cut with 'gussets' to accommodate the dished floor. I didn't care for that and bought some neoprene sheeting that I cut to fit and then sewed those gussets in a closed position with the neoprene underneath.

 

Aren't you clever! You are right about the gussets on the driver's side. I used double-sided Velcro to hold them in place but it comes loose when removing the mats for cleaning. The neoprene backing is a great idea.