At the stunning Circuit of the Americas facility in Austin, Texas, Kelly took his Nissan Altima to two more top 10 results.
V8 Supercars Championship will be staging its first event on United States soil.
Wild rides for former Longhorn stars
The results makes it seven top 10 finishes for the Altima in the Japanese car company's return to top-level Australian Touring Car racing this year.
The Chill Perth 360 will be held this weekend (May 3-5).
The Nissan Motorsport drivers moved up or maintained their positions in the championship.
The V8 Supercars will be back on track tomorrow in Pukekohe for two qualifying sessions, plus Races 8 and 9 of the championship.
It was a disappointing day for Todd Kelly, who proved to be the fastest of the Nissan quartet in qualifying and the race, only to succumb to a power steering failure.
The MSS Security Challenge non-points third race on the Albert Park Circuit kept the stewards of the event busy with drivers being excluded. The adjustments of Race 3 outcome shows Coulthard as the winner followed by Reynolds and Bright.
Nissan pleased with progress made during Adelaide weekend.
Changes in the V8 Supercars made for an interesting first day of the Clipsal 500 on the streets of Adelaide. Besides the addition of Nissan and Mercedes to the series, a new driver appeared from the MotoGP ranks.
James Moffat and Michael Caruso join Todd and Rick Kelly as factory Nissan Motorsport drivers in 2013 V8 Supercars Championship.
First Jamie Whincup did not make it into the top 10 chasing for the pole, and then Will Davison made unusual errors. Tim Slade is one happy pole winner in the V8 Supercars Australia season finale weekend.
Rain played a factor in the first qualifying for the Sydney 500.The track dried at the end but several top drivers will not have a shot at the pole; including Whincup!