The heats started at sunset in Las Vegas at the Global RallyCross Championship.

Tanner Foust clears the 70-foot gap jump while Timur Timerzyanov goes underneath during the first heat Tuesday at the Global RallyCross Championship season finale in Las Vegas.

Cars start the Global RallyCross Championship auto race, Tuesday at the SEMA Show at the Las Vegas Convention Center in Las Vegas.

Tanner Foust does a victory lap after winning Round 6 of the Global RallyCross season Tuesday night in Las Vegas.

Brian Deegan trying to catch up during the final race of the season in GRC.

Ken Block, left, jumps out to the lead on Tanner Foust and the rest of the pack during the final Global RallyCross race in Las Vegas before engine problems forced Block out and caused a restart.

A crew member of Tanner Foust makes some last-minute adjustments while spectators look on.

Tanner Foust squeezes between Timur Timerzyanov on his left, and Ken Block on his right.

Tanner Foust is No. 1 again, winning his second consecutive round of the 2012 season and his second consecutive Global RallyCross season championship.

A member of Tanner Foust's race team sprays the 2012 Global RallyCross champion with champagne after he won Round 6 Tuesday night in Las Vegas.

Tanner Foust, center, Brian Deegan, left, and Rhys Millen, right, finished 1-2-3 Tuesday night in Las Vegas and in the overall standings [though Millen tied Samuel Hubinette in points].

Tanner Foust shares his Global RallyCross Round 6 victory with members of his Olsbergs Motor Sport Evolution team Tuesday night in Las Vegas.

Before the night is over, newly crowned Global RallyCross overall champion Tanner Foust takes time to sign autographs for some fans.