Motorsport: Kiwi Scott Dixon left fuming after being taken out at IndyCar's Grand Prix of Long Beach

Kiwi Scott Dixon hasn't held back over an incident that saw him crash out of IndyCar's Grand Prix of Long Beach, after being forced off the track.

On the 20th lap of the 85 lap race, Chip Ganassi driver Dixon's day was done, when he and Arrow McLaren's Pato O'Ward were wheel to wheel heading into a corner.

With the outside line, Dixon didn't have enough time to react to O'Ward's move and crashed into the barrier. Dixon was in sixth place at the time.

With a third-placed finish to open the season at St Petersburg and fifth at Texas, Dixon bettering O'Ward would have boosted his championship hopes, with the McLaren driver atop the standings before the latest race. 

Instead, as he hunts for a record-equalling seventh title to sit alongside American icon AJ Foyt, Dixon was left frustrated. 

"To me, I haven't seen proper replays of it yet, but that seemed extremely late," said Dixon. "We were already committed to the corner.

"I understand there's tyre deg [degradation] and all that kind of stuff going on, but I wouldn't have chosen to do that.

"If that's how the series wants us to race, I guess it's all its gloves off from this point."

If it was any consolation for Dixon, O'Ward was later taken out by Marcus Ericsson and forced to settle for 17th. 

Dixon's incident wasn't the only incident to mar the race, as Meyer Shank's Helio Castroneves also crashed out on the opening lap. 

"It's [been] a frustrating day on the strategy we were, plus the start was a complete joke as well," Dixon continued. 

"I don't know what they're calling up there. It seemed like row six or five went way before the leader did."

American youngster Kyle Kirkwood took the chequered flag for his maiden IndyCar victory, with Romain Grosjean second and Ericsson completing the podium.

In just his second race, Kiwi rookie Marcus Armstrong - Dixon's teammate - continued his strong debut season in eighth, while Scott McLaughlin of Team Penske came home 10th.