Peugeot had a flop of a advertising campaign when it sent 308 'nudists' to celebrate launch of 308 CC in London... the blue scarf represented the heater in the car.

http://www.nickburcher.com/2009/04/naked-people-in-london-it-was-for.html
https://www.autoblog.com/2009/04/23/buff-it-out-peugeot-inundates-london-commuters-with-308-nudist/