By LEAH WEATHERSBY

When it comes to transportation, Seattle has more on its mind than monorails and Sound Transit - especially in June, when the Greenwood-Phinney Chamber of Commerce's 10th annual Greenwood Classic Car and Rod Show comes to town.

This year's show, scheduled for June 29, may have more cars than ever, thanks to an extension of the festival's grounds. Car Show will be on display all the way from N 70th Street to N 87th Street, several blocks further than last year's festival, which stopped at N 74th Street. Why the growth? Because, said Mary McCann, a spokeswoman for the Chamber, last year the car show had to turn away about 100 potential car exhibitors. This is a particularly amazing figure, considering that 520 classic car owners participated in last year's event. Assuming the Chamber gets that extra space, 600 vehicles are expected to be on display.

Another change this year will be in the awards. McCann said the Chamber is planning to revamp some of its 20 traditional categories.

"We're making an effort to be sure that every entry fits into at least one prize category," said McCann. "Categories will be decided once we meet with our judges, but for sure there will (still) be a Best of Show to top all others."

One prize for the Best of Show recipient is immortalization of their car on the following year's poster. Signs for this year's show feature last year's winner, a 1938 Chevrolet Town Sedan belonging to Jim Clark.

The prizes for winners in all the categories will be up-graded, according to McCann.

"This year, everyone will at least get a small engraved plaque or trophy," she said. "In addition to the awards, the first 500 entries get a commemorative dash plaque, and this year for the first time they will also get goodie bags filled with promotional items donated from area businesses."

With up to 80 more vehicles to see (and drool over), you may be tempted to run from car to car, ignoring the other festivities around you. That would be a mistake, as you would miss the food vendors located on on Greenwood Avenue between N 83rd and N 84th streets. The Chamber has enlisted KBSG radio to broadcast oldies music live from the site in the morning, followed by a rock band called Ginny and The Tire Kickers (1-3 p.m.)

Above all, watch out for crowds. McCann said the event is estimated to have drawn around 10,000 visitors in previous years. If you own a classic car and want to exhibit it, preregistration is encouraged, although entries will be accepted on the day of the show, starting at 7 a.m. Typically, the show fills by 9 a.m. Greenwood Avenue will be closed to traffic from 6 a.m.-6 p.m. on the day of the show.