Graham Rahal and his IndyCar peers are still getting a clear handle on performance changes in cars featuring new aerodynamic kits, but the looks for the two manufacturers are pretty distinctive. Drivers took to the track at Barber Motorsports Park Monday to start two days of testing and learning ahead of the upcoming season, which begins March 29 in St. Petersburg, Florida. Honda and Chevrolet cars sport noticeably different designs on parts stretching from Chevy's vented rear wings to Honda's laddered front wings. Not to mention the sore necks cited by Josef Newgarden and Graham Rahal. More...