In a good package those cars are worth $20.00 each plus shipping all day long.They sold for $10-15 dollars each years ago.. The odd colours worth a little more..
according to my records, there were 4 versions made; 1 in a square box, 1 in a triangle box, 1 GN with 2 other cars in a triangle box & 1 GN with 5 other cars.