INDIANAPOLIS, Tuesday, May 12, 2015 – One of the major storylines for the 99th Running of the Indianapolis 500 is Helio Castroneves' continuing quest to join the four-time winners club.

The answer to that quest is still 12 days from being revealed, but the 40-year-old Team Penske veteran showed off a car on Tuesday that could be up to the task.

Castroneves ran the fastest lap in a busy second day of practice for the “500,” 227.514 mph in the No. 3 Shell V-Power Nitro+ Chevrolet. Teammate Simon Pagenaud was second in the No. 22 Avaya Team Penske Chevrolet at 227.382 mph.

“It was a good day. The Shell V-Power Nitro+ car was super strong, super solid, felt comfortable,” said the three-time Indianapolis 500 champion. “Now we've got to just keep working with this new aero kit. Today was basically the second day that we've been working constantly, but I like what I see. Things are looking in the right direction. We're not focused on just the lap, we're focused on the performance of it all.”

A total of 34 drivers turned 1,958 laps on the 2.5-mile oval under partly cloudy skies. Another full day of practice is on tap for Wednesday from noon to 6 p.m.; gates open at 10 a.m. and admission is $15 with children 12 and under free.