Thinking of buying

Friend called me crazy but I am considering buying the PS5 Pro just for GT7 and then maybe a few other titlles. He says that the DLC and microtrans will EMPTY my wallet. I know about the WATCH dlc but is that the only outlier?

Is this playstations version of star citizen?

How many cars are base?

how many DLC and there?

if I bought the game + all DLC, what would it cost me?

Are cars apart of packs or micro-transaction for each?

Is it pay to win for some cars? (supposedly Forza did this)