The Most Contested Number in the Tesla Thesis
TAM estimates range from $25B (Goldman Sachs conservative, ride-hailing only) to $10T+ (ARK Invest, full transportation disruption). The 14x spread in market research estimates directly explains why Tesla's implied robotaxi value ranges from $0 (bear) to $4.1T (bull).
| Goldman Sachs | US robotaxi (conservative) | $25B+ | ~90% |
| MarketsandMarkets | Global robotaxi | $45.7B | 91.8% |
| Grand View Research | Global robotaxi | $147.25B by 2033 | 99.1% |
| McKinsey | Full mobility disruption | TBD | N/A |
| ARK Invest | Global transport disruption | $10T+ | N/A |
What fraction of personal car owners would actually give up their vehicle for robotaxi-only? Deloitte says 44% of US 18-34 year-olds, but what about 35+ and suburban/rural populations?
The current ride-hailing market is the floor for robotaxi TAM -- the minimum addressable market assuming robotaxis simply substitute for human-driven rideshare. The driver takes 70-75% of the fare, making driver elimination the single largest cost lever.
| Total rides | 11.27B | 828.3M |
| Revenue | $43.978B | $5.786B |
| Gross bookings | $162B ($83B mobility) | $16.1B |
| Cost of revenue ratio | 60.6% | 57.7% |
| Operating income | $2.799B (6.4%) | $22.8M (first-ever net income) |
| Driver share of fare | ~70-75% | ~65-70% |
| Take rate | ~27% | ~35.9% |
The TAM-Expanding Thesis
If robotaxi cost per mile drops below the $0.56-0.77/mile total cost of personal car ownership, some fraction of car owners will substitute robotaxis for owned vehicles. This could expand the TAM from ~$150B (ride-hailing) to $1-3T+ (portion of the $5T+ personal transportation spend).