While the Champ Car World Series is no more, there will be one more Champ Car race.

Indy Racing League founder Tony George and Kevin Kalkhoven, owner of the now-defunct Champ Car series, Wednesday revealed some details of the unification of America’s two open-wheel series, including the fact that the April 20 Toyota Grand Prix of Long Beach will be run by Champ Car teams with their old equipment while their new IndyCar Series brethren are in Japan.

“It’s going to be a celebration of Champ Car and, I hope of the IRL,” said Kalkhoven.

The unusual plan was made necessary when neither Long Beach nor the traditional IRL race at Motegi, Japan, set for April 19, would agree to change their dates.

At one point in the negotiations, Kalkhoven said that there could be no deal without the Motegi date being moved. But the eventual answer was to have the IRL regulars run in Japan and to reprise the Champ Car series for one more race.

“Our teams have agreed to this and it’s going to be something special,” Kalkhoven said.

The long-sought after unification was announced last Friday, but George said there are many details still to be taken care of before the unified series begins its season at Homestead-Miami Speedway on March 29.

Among those details are finding enough Dallara chassis to accommodate the Champ Car teams that plan to make the move to the IRL, and firming up the dates for the former Champ Car races at Edmonton, Alberta, and Surfers Paradise in Queensland, Australia. Those will be the only additions to the 16-race IndyCar schedule for 2008, with other Champ Car events under consideration for 2009 and beyond.

“I’ve said many times that unification itself isn’t some sort of magic bullet to be able to get us forward,” Kalkhoven added. “It’s going to take an awful lot of hard work, and that has already begun.”