Phoenix race passes noise test.

One of the last remaining hiccups ahead of Champ Cars new Grand Prix of Phoenix was overcome last week when the event organisers satisfied local police that the noise of the cars wouldn't disrupt a nearby emergency call centre.

The new for 2007 downtown street circuit event, set to form the final round of the Champ Car World Series championship in December, had incurred the potential wrath of the local police department, who were concerned that the noise produced by the turbocharged Champ Cars would make it impossible for staff in the nearby 911-call centre to hear incoming calls.

However after testing the expected noise levels in the presence of the local sheriff, the event has been given the go ahead to proceed as planned.

"We're happy it was a successful test," stated event co-owner Dale Jensen. "As the Sheriff says, 'The proof will be on race day.' I plan on being with him in the call centre when the first car turns the corner to make sure our test was indeed successful. We are appreciative to the Sheriff and his staff for the cooperation they provided."

"I am thankful and grateful to the owners of Grand Prix Arizona for what I didn't hear today," added local sheriff Joe Arpaio.