Penske drivers don't wear jeans. That seeming triviality actually tells you something about the differences between Chip Ganassi Racing and Team Penske in IndyCar. Analyse the operational divergences and structural differences all you like, but in the paddock it's the sartorial gulf that is one of the more obvious clues as to how two of the series' powerhouse teams approach things.
When Ganassi-run 2013 champion Scott Dixon is called upon to make an appearance, he does so in either his racesuit or a neat pair of jeans and a team polo. If you're with Penske, it's black slacks all the way. How much all this translates into lap time is a moot point: at Penske, it projects an image of professionalism and discipline.
For anyone in the Formula 1 paddock whose perception of Juan Pablo Montoya hasn't changed since he walked away in 2006, that could set off the alarm bells.