Smoking commonly harms other people too, of course.

Yep, hence "mostly". And car heavy culture of course has other death effects besides GW, like local pollution caused deaths, rainforest destruction from biofuels production, accidents, sedentary lifestyle, car suburbia environments, disposessed status of the carless (weighted toward women and children), etc.

Cough White Collar.

In US TV series the people in cars tend to be white collar / upper middle class people. This is depicting supposedly relatable people who have choice and who never make a number out of it. So it's propagating a deletorious attitude.

Around my parts the white collar people tend to drive more than working class employees, because they get big houses away from the city where they work, and go to their cabins or whatnot every weekend, and are more likely to buy fuel-wasteful cars like SUVs. While non-white collar people more often go without a car at all or at least use it sparingly. Generally it's not like you couldn't choose a low carbon lifestyle if you worked in arts, blue collar industry, public sector jobs etc.

Erm I was referring to the White Collar TV series which featured endless awkward product placements for a car.