After the nail-biting drama of rushing to complete qualifying before the arrival of storms on Saturday afternoon, it was a much more relaxed and laid back Sunday morning warm-up session at Barber Motorsports Park as the Verizon IndyCar Series teams made their final preparations for the Honda Indy Grand Prix of Alabama.

It had been a misty and cloudy start first thing but the cloud was well on its way to breaking up and temperatures were already climbing into the 70s as the drivers enjoyed one last 30 minute session on the 2.3-mile, 17-turn road course.

CLICK: Full Sunday morning warm-up times from Barber Motorsports Park

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Just as he had in the first practice session 24 hours earlier, Scott Dixon finished with the best time of anyone as he posted a late lap of 1:08.2626 (121.243s). That was well down on the sort of pace that the drivers had been reaching on qualifying before the rain hit which confirmed that everyone was focused on fine tuning race set-ups rather than going for time trials on the circuit which has been washed clean by the overnight rain causing it to surrender some of the grip that it had built up on Saturday.

Dixon's time was still nearly three tenths faster than Will Power who led an all-too familiar block of three Penskes, with Simon Pagenaud third fastest in the warm-up followed by the race pole sitter Helio Castroneves in fourth. Less than half a second covered the quartet by the time the chequered flag came out.

Dixon's team mate Tony Kanaan was fifth fastest with CFH Racing's Josef Newgarden in sixth; they'll reverse those positions when they line-up on the grid for the start of this weeks's race later this afternoon.

Graham Rahal was the only Honda representative in the top ten in the #15 Rahal Letterman Lanigan Racing. He finished just ahead of KVSH Racing's Sebastien Bourdais, who along with his team mate Stefano Coletti has been an early leader on the timing screens.

The two Ganassis of Charlie Kimball and rookie driver Sage Karam then sandwiched the remaining Penske car of Juan Pablo Montoya: the former F1 and NASCAR driver continued to struggle to match the pace of his team mates at Barber and ended the warm-up in tenth place, which is about where the #2 car has been all weekend although he'll start today's race even further back on the grid in 15th place.

The top 12 was rounded out by Carlos Munoz, the highest placed of the Andretti Autosport competitors and the second-highest of the Honda cars.

In keeping with the generally laid back feel of the Sunday warm-up there were few dramas or incidents, although Power did manage to rip off and carry away part of a trackside advertising banner that had became far too attached to the #1 car, and Dale Coyne Racing's Francesco Dracone triggered the only red flag late in the session when he spun on the frontstretch in front of AJ Foyt Racing's Jack Hawksworth and stalled the #18 so that the safety crew had to mobilise to fire him back up.

There were still a few minutes left once the track went green again after the Dracone-inspired interruption, but there were few takers and everyone seemed content that their work here was done and they had little more to gain by heading out again before the 90-lap race, which is scheduled to get the green flag at 2.37pm (8.37pm BST) on Sunday afternoon.

See Sunday morning warm-up times from Barber Motorsports Park