David Letterman´s Top 10 reasons why there are no black NASCAR drivers:

# 10 - Have to sit upright while driving.
# 9 - Pistol won´t stay under front seat.
# 8 - Engine noise drowns out the rap music.
# 7 - Pit crew can´t work on car while holding up pants at the same time.
# 6 - They keep trying to carjack Dale JR.
# 5 - Police cars on track interfere with race.
# 4 - No passenger seat for the Ho.
# 3 - No Cadillac´s approved for competition.
# 2 - Can´t wear helmet sideways.
AND THE NUMBER ONE REASON WHY BLACKS CAN´T BE IN NASCAR...
# 1 - When they crash their cars, they bail out and run.