It would've been better to create a new mod for this car, instead of replacing it. Yes, there's now a "new" (old!) car, but all the setups and lap records are on the "current/new" car while it's literally impossible to compare the two.
I was a big fan of the 2017 version, didn't expect to completely relearn the car after a update so can't give 5 stars. The time and effort you put in to make this amazing mod is the reason I'm still giving 4 stars.