Now, the Indy 500 is the only Indy-car race run by USAC, which follows the Speedway's philosophies.

But the Buick-powered teams run in the only Indy-car race where they are competitive - the Indy 500.

Despite the lingering effects of a separated shoulder, Mario Andretti led from start to finish as he won a 200-mile Indy-car race at Road America today.

But, Elliott said yesterday, that was canceled after a decision by IndyCar, the group that sanctions the 15 Indy-car races other than the Indianapolis 500.

Not only have many drivers and car designers flitted between the two series, but 9 of the 15 Indy-car races are now held on European-style road-racing courses.

For auto racing fans who attended this past weekend's activities at the raceway in Pocono, Pa., the 500-mile Indy-car race yesterday may not have been the most entertaining event.

The event will be held June 14-16 as the sixth of the 17 Indy-car races on the 1991 schedule.

The "here" was someplace much bigger than Detroit, which was only his second Indy-car race.

Johncock, the 50-year-old veteran of 254 Indy-car races, who won at Indianapolis in 1973 and 1982, is replacing Jim Crawford of Scotland in the American Racing Series entry.

To confuse matters further, the 22 cars will race clockwise; the 500-mile Indy-car race on Memorial Day and Brickyard 400 stock-car race in August run counterclockwise.