A group 4 and B mod

so I've always noticed no ones ever made a mod about the ages of group 4 and B. Now i know nothing about mods so that's why its a suggestion. if someone could so that i am really good at researching certain things and finding pictures across the internet.

If a mod maker or group of them sees this here is some things id probably do:
-Paid mod
-Make it parts so like ever few cars is like a pack together
-like 3-5 cars per pack
-every car worth $1.50 ( so pack of three would be $4.50)
-multiple paint schemes if able to

thats all really. New to the forums and just wanted to post something maybe others would find interesting. there is a group b lancia delta but that one is kinda broken but still works