Just saw a Toyfair 2019 reveal by Jada Toys for their Transformers line of die-cast (non-transforming) cars, which include an up-coming faithful and apparently fully licensed G1 Jazz. I realise licensing agreements are complex, but it bodes well that conversations between TF toy makers and the car company involved have at least happened and been successful to some degree.
for the first time in a long time I suddenly have an interest in collecting a die cast car.