So, everyone agrees that commuting is terrible for the happiness of the commuter. One thing I've struggled to find much evidence about is how much the method of commute matters. If I get to commute to work in a chauffeur driven limo, is that better than driving myself? What if I live a 10 minute drive/45 minute walk from work, am I better off walking? How does public transport compare to driving?

I suspect the majority of these studies are done in US cities, so mostly cover people who drive to work (with maybe a minority who use transit). I've come across a couple of articles which suggest cycling > driving here and conflicting views on whether driving > public transit here but they're just individual studies - I was wondering if there's much more known about this, and figured that if there is, someone here probably knows it. If no one does, I might get round to a more thorough perusal of the literature myself now I've publicly announced that the subject interests me.