Bad analogy Mike. Your car scenario is a one-time case of knowingly concealed defective manufacture. To be a parallel to cigarettes, that car manufacturer would have been forced by the government to put a warning covering the entire side of every car they sold, over decades, stating, "This cars wheel's are known to fall off" and the buyers would have had to have been unwise enough to deliberately ignore it, for -years-. 

Cigarettes are merely a case of deceptive marketing countered by such a warning for the past almost 50 years plus the general knowledge that smoking is bad for you that's been around for well over a century.