INDIANAPOLIS (AP) -- For drivers, Saturday's first-ever NASCAR Nationwide Series race at the Indianapolis Motor Speedway represents a chance to run on perhaps the most famous track in racing.

It's also one of the tougher tests they'll face all season.

The historic 2.5-mile oval has hosted NASCAR's top-level series, now known as Sprint Cup, since 1994 but didn't add the second-tier Nationwide Series until this year. For many drivers in the field, it will be their first time racing at Indy -- and they're in for a challenge.

Nationwide points leader Elliott Sadler said the track is "not forgiving at all," given its long high-speed straightaways and challenging unbanked turns.