I am not sure of the age of this model but it is posted on the Revell web site:

Revell/Monogram has announced news of a SPz PUMA and German Staff Car "G4" (1939) both in 1/35th scale.

Revell-Monogram announced that its 1:48 scale F-4E Phantom (Product #: 5978) will be released in April. The MSRP for this kit is $31.85.