Board Thread:Game Discussion/@comment-35553674-20180524190049/@comment-29605676-20180524213912

Eyespy wrote: @Biscuits - Not sure I get your drift when you say "Don't buy R$ cars unless you need them right now or have a couple million R$ available, ...."  I thought best practice was to use R$ rather than gold  to purchase cars etc and if the car has a R$ showcase or sale on isn't that the time to get it if you're going to get it at all? I think what @Biscuits was also saying is that yes, use R$ to buy cars instead of gold, but you should keep some R$ in reserve. From my personal experience going through the game running both career and bonus series, which I now thing was wrong strategy, I ran out of R$ at times. For example, I had to extensively farm using the F40 to get enough R$ to upgrade my first LMP1 to get to its 10-lapper.

Yes, in the end R$ will become irrelevant. For me this was some weeks after unlocking the 10-lapper, but it will at times limit you, but nowhere near as much as gold will. So spend gold very carefully and pay some attention to what you spend R$ on for now.