Board Thread:General Discussion/@comment-10090661-20141028101100/@comment-86.14.112.121-20180121170944

Season 9 S Class 5267 credits SD Harbor 55 seconds (1 car to avoid) Koenig One is the easiest.

For me good farming track is any, that can give you 5000+ credits in less than minute. This is list of cars fitting this criteria:

Season 9:

Mercedes-benz Biome: Dubai, ~54 seconds at rank 1550, 5 000 credits

Ferrari F40: Dubai Reverse, ~53 seconds at max/pro, 5 100 credits

McLaren 675LT: Alps, ~52 seconds at max/pro, 5 200 credits

Mastery:

Ferrari F12berlinetta:    challenge 15 -  San Diego Harbor Rev, ~57 seconds, 5 700 credits, flawless race!!

Lamborghini Sesto Elemento: challenge 14 - The Rose of the Desert, ~53 seconds, 5 400 credits, flawless race!!

McLaren 675LT: challenge 15 - Dubai Reverse, ~48 seconds, 6 100 credits

Lamborghini Veneno: challenge 15 - Alps, ~ 56 seconds, 6 000 credits, flawless race!!

GTA Spano: challenge 14 - Dubai Reverse, ~52 seconds, 5 400 credits

RUF CTR 3: challenge 15 - San Diego Harbor, ~56 seconds, 6 000 credits, flawless race!!

Pagani Huayra: challenge 14 - The London Eye, ~53 seconds, 5 500 credits

Koenigsegg Agera R: challenge 15 - Alps Reverse, ~56 seconds, 6 100 credits

Weber Faster One: challenge 14 - Dubai, ~46 seconds, 5 500 credits

challenge 15 - The Mirage, ~49 seconds, 6 100 credits, flawless race!!

All cars are unboosted.