Marco Andretti broke the run of Penske dominance on track at Auto Club Speedway in Fontana, California, topping the final practice session on Friday evening as the teams had their one and only opportunity to test after sunset in the same floodlit conditions that'll face for the MAVTV 500 IZOD IndyCar season finale on Saturday night.

In the significantly cooler conditions, Andretti's time of 32.9135s (218.755mph) was slower than the pace Will Power has set in the daytime, but was still 0.0016s faster than Helio Castroneves who is bidding to clinch the 2013 championship title over Scott Dixon.

The half-hour session was once again dominated by Chevrolet runners - last year's winner at Fontana winner Ed Carpenter ending the day third fastest ahead of Tony Kanaan and Power - leaving Dixon as the fastest Honda runner in sixth place, just over two tenths off the pace of Andretti and Castroneves.

Standing in for Dario Franchitti in the #10 Ganassi car, Alex Tagliani finished eighth in final practice in his first day back on the track in an IndyCar since Toronto. Carlos Munoz was 21st in the session after stepping in at short notice for EJ Viso who is ill and was unable to make the trip to Fontana this weekend; the #5 Team Venezuela-Andretti Autosport-HVM is the third different car Munoz has driven in the series in 2013 after competing in the #26 Andretti car for his debut in the series in the Indianapolis 500 in May, and then substituting for an injured Ryan Briscoe at Toronto in the #4 National Guard Panther Racing.

After missing qualifying while their cars were being rebuilt following heavy crashes in turn 4 in the first practice session, Pippa Mann (Dale Coyne Racing) and Takuma Sato (AJ Foyt Racing) were both back in action in the evening as was Mann's team mate Justin Wilson who suffered a mechanical issue before he could make his qualifying run.

There were no stoppages in the final practice session. However, Tristan Vautier's preparations in the #55 Schmidt-Peterson Motorsport car were disrupted when he was only able to limp around the two-mile oval once very slowly and spent the rest of the session back on pit road with mechanical issues.

One outcome of the day's track activities was that drivers successfully petitioned race officials for a 20 minute delay in the start time for Saturday's race, which will now be at 6.10pm local time (2.10am BST Sunday morning) in order to bypass glare from the setting sun when entering turn 3.

Practice 2 times

1. #25 Marco Andretti (C) 218.755mph 32.9135s (34 laps)
2. #3 Helio Castroneves (C) 218.745mph 32.9151s + 0.0016s (37 laps)
3. #20 Ed Carpenter (C) 218.147mph 33.0053s + 0.0918s (38 laps)
4. #11 Tony Kanaan (C) 218.143mph 33.0059s + 0.0924s (32 laps)
5. #12 Will Power (C) 217.635mph 33.0829s + 0.1694s (39 laps)
6. #9 Scott Dixon (H) 217.348mph 33.1266s + 0.2131s (39 laps)
7. #1 Ryan Hunter-Reay (C) 217.215mph 33.1469s + 0.2334s (40 laps)
8. #10 Alex Tagliani (H) 216.747mph 33.2184s + 0.3049s (41 laps)
9. #83 Charlie Kimball (H) 216.084mph 33.3203s + 0.4068s (37 laps)
10. #78 Simona De Silvestro (C) 215.948mph 33.3414s + 0.4279s (37 laps)
11. #2 AJ Allmendinger (C) 215.627mph 33.3910s + 0.4775s (37 laps)
12. #27 James Hinchcliffe (C) 215.505mph 33.4099s + 0.4964s (37 laps)
13. #4 Oriol Servia (C) 215.341mph 33.4354s + 0.5219s (41 laps)
14. #7 Sebastien Bourdais (C) 215.335mph 33.4363s + 0.5228s (34 laps)
15. #67 Josef Newgarden (H) 214.688mph 33.5370s + 0.6235s (37 laps)
16. #16 James Jakes (H) 214.562mph 33.5567s + 0.6432s (38 laps)
17. #19 Justin Wilson (H) 214.302mph 33.5975s + 0.6840s (26 laps)
18. #18 Pippa Mann (H) 214.298mph 33.5981s + 0.6846s (30 laps)
19. #98 JR Hildebrand (H) 214.240mph 33.6072s + 0.6937s (37 laps)
20. #14 Takuma Sato (H) 213.862mph 33.6666s + 0.7531s (35 laps)
21. #5 Carlos Munoz (C) 213.786mph 33.6785s + 0.7650s (37 laps)
22. #77 Simon Pagenaud (H) 213.711mph 33.6903s + 0.7768s (40 laps)
23. #6 Sebastian Saavedra (C) 213.228mph 33.7667s + 0.8532s (33 laps)
24. #15 Graham Rahal (H) 212.963mph 33.8087s + 0.8952s (30 laps)
25. #55 Tristan Vautier (H) No time (1 lap)

Total Laps: 867


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