Nah Ferrari sucks, their cars are very unrealiable and not even the fastest of their street competitors, only the looks are appealing but they restrict what you can do to them a lot and sue you for absolutely anything
what i do for farming is taking daily rewards 2 times a day (9am & 9pm) and weekly car until i got the faretti daytona, you can sell it for 6.3M (don´t sell theprevious weekly cars until the daytona) and you´ll get 9.1 M every week by just logging two times at a day taking the daily rewards.