Just curious. I know that the Epsilon is probably based off of Lancia Delta, but don't know anything about the rest

I know that Arashi is based on an anime called Initial D.

I always thought Epsilon was based on a car that we know here in Brazil as Volkswagen Parati. I don't know how it is called elsewhere

I wonder too what real cars were used as reference.
I wonder also about rivals portraits who are they based on?