Crossword puzzle clue "where many races are seen briefly"

Where many races are seen, briefly

Chevy seen in NASCAR races

Something often seen on a street corner, briefly ... or, literally, something seen in each corner of this puzzle

Like many "Star Trek" races

Many run races to get here

Where many races are run

Spiro who wrote, "If you've seen one city slum, you've seen them all"

Springsteen "If you've ever seen ___ trick pony then you've seen me"