I use the the All Weather Mats/Digital Fit FloorLiner Mats from MacNeil Automotive /WeatherTech brand for my daily driver. These are car/model specific. Received the following from MacNeil:
" Unfortunately, we do not have any All Weather Mats or Digital Fit FloorLiner for your 1966 Cobra. I do have a set of All Vehicle Mats (
WeatherTech® AVM® All-Vehicle Mats | WeatherTech.com) that are a generic Trim-to-Fit mat with a multitude of guidelines to follow to fit them to your vehicle."
" However, my engineers have not tested these Mats in your vehicle ( i.e. 1966 Cobra ) so I cannot guarantee a fit or show exactly how much you'll need to trim the mat "
Measurements provided for the All Vehicle Mats
AVM-R1 LHS Mold # 2106: 18.5" W trimmable to 16.5W", 17" L trimmable to 15"L
AVM-F2 LHS Mold # 2108: 19"W trimmable to 16"W, 27"L trimmable to 24"L
AVM-F2 RHS Mold# 2109: 18"W trimmable to 16"W, 28"L trimmable to 26"L