Board Thread:Game Discussion/@comment-35170358-20180415132940/@comment-26535270-20180416161229

1 day of Full 190 ads will give you consistent ~340k R$. So, 3 days should do 1 020 000 R$.

It is possible to complete Road to Le Mans with R$ only (i did at least), but R$ upgrades is expensive if you low at R$. Just look ADs and you should be fine.