Start with rewards you can verify
The Collection Journal rewards credits, Wheelspins and cars. Festival racing, Discover Japan and Horizon Play are separate progression paths. Choose an unlocked objective, read its reward screen, finish it and compare the actual credit balance. A long race, a difficulty bonus or a shared route code is not automatically the fastest option for your account.
Measure a whole session
- Record starting credits and the route/settings. Include loading, setup and recovery time in elapsed minutes.
- At the end, record ending credits. If you bought a car or upgrade during the session, add that expense back when measuring earned income, or leave it deducted when comparing your actual net balance.
- Use the calculator above for a repeatable comparison. Enter any fee or expense yourself; the example values are not a statement about the game's auction rules.
- Repeat the same method before calling one result reliable. Compare net income and time spent, not a reward screenshot alone.
Example: 60,000 credits earned, 12,000 expenses and 20 minutes gives 48,000 net and 2,400 credits per minute. A second run with larger gross earnings can still lose after costs or extra setup time. This arithmetic is a planning tool, not a live economy feed.
Wheelspins: the missing probability matters
The first-drive guide confirms Wheelspins as Journal rewards. The primary sources checked for this page do not publish a complete Wheelspin or Super Wheelspin prize distribution. There is no defensible universal “2–3% legendary” rate or expected-credit ranking here. Do not spend credits or choose a route on an invented drop rate.
The former fastest-farming and odds pages are combined here because their central unanswered question is the same: what can you actually earn after time and costs? No AFK exploit, unverified Colossus yield or guaranteed auction profit is supplied.