[whatusername]

While it seems clear that fast driving increased T levels (both Camry and Porsche drivers increased from city to country), that isn't all that this explains.

Depending on what sort of city driving you are doing, the fact that the porsche has higher T levels in the city than the camry does in the country says something. The article argues it's the status effect. (I wonder though - if city driving means stopping (and then accelerating away from) traffic lights. That would be fun in a porsche - boring in a camry.) I'd like to see the test done with an accelerometer in the car. (But us armchair scientists can always find something wrong with an experiment can't we?)

On a related note - I really miss my old 1990 Toyota Camry - I used to be able to drive it nice and fast on some of the twisty dirt roads around here. Didn't really care what happened to it in terms of bumps, scratches, stone chips. I wouldn't do that in a 150K porsche.