They are in the credits of the game, meaning that a license deal was already made, so they will eventually get back. Playground Game still wants to bombard us with Porsches and Ferraris and Audis
Stellantis Italy had an awkward patch where the corporate merger was being finalized about when Playground secured licensing agreements for H5, and I'm guessing there just was never any time for talks to actually happen. The missing brands definitely wasn't intentional given the Stratos was shown off in the pre-release sound demo and Chrysler Group and Groupe PSA cars are still in the game, and interestingly the 1939 Maserati 8CTF has since been added back in too, so there's absolutely hope the rest of the Italian division could return to H5
