The Formula P.A.C.K. was released in 1976 or so it has been thought. In 1975 Mattel started releasing the 6-Pack again, the set Streak Machines was released with the El Rey Special in 1975, but it also is found with the Formula P.A.C.K in 1975 6-Pack. It would seem that this casting had some retooling due to some nose issue and was released early in the 6-Pack. Then released in the line-up of 1976. It has also been released under the name of Malibu Grand Prix (1982) and Lightning Gold (1985). This cast was a Retool of the El Rey Special (1974), with only modifications to the nose of the body. The Formula P.A.C.K was more readily avaliable with Redlines than Blackwalls in 1977. WIth a complete tampo change for 1978.