The One Car Challenge uses a crossover design. Both cohorts run on the same 11-week calendar, but their roles flip at the midpoint: one cohort parks a vehicle and earns rewards (the "earning" phase) while the other is in a research phase, then they swap. When you enroll, you'll be placed in whichever cohort still has spots open. We can't move you between cohorts after sign-up.
Program dates
Both cohorts run Monday, September 28, 2026 → Sunday, December 13, 2026 — the same 11 weeks, starting with a shared baseline week.
Week | Dates | Cohort 1 | Cohort 2 |
0 | Sep 28 → Oct 4 | Baseline | Baseline |
1–5 | Oct 5 → Nov 8 | Earning | Research |
6–10 | Nov 9 → Dec 13 | Research | Earning |
Each cohort gets one 5-week earning phase and one 5-week research phase, plus the shared baseline week at the start.
What if I want a specific cohort?
Sign up early. We don't take requests once cohorts fill, but during enrollment you'll see which one you've been placed in before you finish.
What if I can't make my cohort?
Email us before the program begins and we can usually withdraw you and let someone else take your spot.