carpets on the older cars is still a problem. They had round adhesive velcro patches that stuck to round smooth areas on the underside of the carpets. These would velcro to pucks that screwed into the floor carpet

there all kinds of problems - the picks would come loose, and the adhesive holding the velcro patch to the carpet would come loose in a hot car.

and the carpets would bunch up, usually under the accelerator pedal.

A lot of interior stuff was redesigned better for the newer cars, but then they killed most controls and put them on the touchscreen, ugh.

(No shifter stalk anymore, car guesses direction you want to go, no turn signal stalk, no headlight/wiper stalk, etc)