BOB Power has called on IndyCar officials to improve safety measures after his son Will Power was involved in the horrific 15-car crash which killed fellow driver Dan Wheldon at Las Vegas.

Will Power's Team Penske car was sent airborne and flipped in the fiery crash which involved 15 of the 34 cars racing in the IndyCar season finale at Las Vegas Motor Speedway this morning (AEST).

IndyCar officials later announced Wheldon had died from "unsurvivable injuries".

Power was taken to the nearby University Medical Centre for treatment for back pain, with Power previously suffering serious back injuries in a major crash in August 2009.

Bob Power yesterday told The Chronicle he had spoken with his son and he appeared to luckily have escaped without major injury.

"He hurt his back a little bit. He's

had some X-rays and there is nothing broken. He's all right basically," Bob Power said.

Bob Power, an accomplished open-wheel racer himself, then called on IndyCar to improve safety measures.

Power said his son had grave fears about the safety of drivers before the Las Vegas finale.

"Will is a bit angry about the whole thing. He actually said before the race someone is going to get killed here today," Power Snr said. "They just had too many cars on the track.

"IndyCar really needs to take a look at it. It's a bloody lottery. That's just my view as a father."

Will Power again narrowly missed out on claiming the IndyCar drivers' championship, with today's race abandoned after the lap-12 tragedy.

Power trailed Dario Franchitti in the standings by 18 points heading into the race so the 30-year-old has finished second for the second year running.

He had planned to fly to Brisbane ahead of the Gold Coast 600 this weekend where he would have teamed with Ford ace Mark Winterbottom, but event organisers advised late yesterday he had pulled out of the V8 Supercars race.

Wheldon was also supposed to race at the Gold Coast this weekend with reigning champion James Courtney.

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