I know this selection "dates" me, but these are my current favorite cars.

1968 Dodge Charger 440 RT...Turbine Bronze, black vinyl roof
1967/63 Corvette Coupe...small block or big block, doesn't matter. Electric blue or yellow.
1966 Jaguar XKE Coupe...Red
1962 Ferrari 250 GTO...Red, what else?
New Ford GT...White with blue stripes, or red with white stripes.
1996 Viper GTS...they only came in one color. Blue.
1969/70 AMX 390...Bittersweet orange.
Crossfire...of course. Red/White,or Blue.
1964 Chrysler Turbine Car...Turbine Bronze.
1963 Avanti R2...Teal.


Honorable mention:
1955 Chevy Nomad...turquoise/white.
1955 Mercedes Gullwing...red or silver.
"Oscar Mayer" Wiener Mobil...Don't ask