Yes, some really cool cars that we will probably never see in a Forza, neither Horizon or Motorsport sadly.
Some of these cars would be perfect choices in FH5, like the Mitsubishi Lancer Evo 3 among others.

https://forums.forza.net/t/fh-car-vot...

Ford Mondeo ST200
Peugeot 306 Maxi
Alfa Romeo 156 GTA
Dodge Li`l Red Express Truck
VW T2 and T3