Board Thread:Game Discussion/@comment-33170665-20180112010018/@comment-27370080-20180112034815

Formula e, none.

From your question, it sounds like you're not ready for supercars yet. I'm going to agree with P2dro because the 2015 RSR will only get you the car, then there's the upgrades needed for RACING SPIRIT, which is a near fully upgraded car.

In addition to the three bonus series the RSR opens, which will at some point force you to make a Showcase Discount buy-decision (which you will likely not be able to afford).

So seemingly you are not at a stage in the game where you're ready to buy these cars yet, unless you're a collector. Then the garage is your priority and you just won't be able to advance as a result of possessing the car.