Only three white cars give the players equal opportunities (making it a gamble by the way).
Two black - two players are doomed to lose.
One black - one player is doomed to lose.
(A black is a doomed loser every time. Why so?
)
"
After 20 minutes of silence you are amazed you didn't guess your color sooner." - If you did you'd likely lose. It's assumptions over logic (effectively guessing) game actually.