In 1979 the Entry level set, Trenton 150 was replaced with the Grand Prix 150.
It remains pretty much identical but the cheapo barriers were upgraded to the regular Powertrack type.
The battery box still remains but the Sportsman cars were junked in favour of the super-smart Ferrari 312T and the - painted to look like an IMSA car - McLaren M23
As for set contents, please see Trenton 150.
Price at launch: Unknown.
