Review for LEGO set 6551 Checkered Flag 500 from Brickipedia
“The two racers share the same design and feature spring suspensions and large rear spoilers. They are labelled with the numbers "2" and "4". Among the six included minifigures are the two race drivers (including Eddie Octane), two race crew members (one with a walkie talkie... More and one with a checkered flag) as well as a male and a female spectator.”
Full review at brickipedia.fandom.com