BMW is backing a startup that says it can turn carbon pulled from the air into fuel sold through regular gas stations, a bet that could give automakers a lower-emissions bridge for the millions of combustion cars still on the road.
BMW backs Prometheus Fuels with $12.5 million
BMW i Ventures said it invested $12.5 million in Prometheus Fuels, which captures CO2 from the atmosphere and converts it into fuel that can be used in standard cars without modification. The company plans to start selling the fuel in California this year, with a price it says will compete with fossil fuels.
The investment matters because the transport sector still depends heavily on engines that will stay in service for years. BMW’s Greg Smithies said the average car remains on the road for more than eight years, meaning a rapid switch to battery power alone would not eliminate tailpipe emissions quickly enough.
Prometheus says its fuel creates no additional CO2 over its full cycle from capture to use, a claim that would make it one of the more commercially relevant so-called e-fuel plays in the market if it can scale. The company also says replacing fossil-derived fuels with similar alternatives could cut global carbon emissions by about 25%, underscoring why synthetic fuels remain attractive to automakers and energy investors looking for near-term decarbonization options.
Founded by Yale-trained engineer Rob McGinnis and launched out of Y Combinator in 2019, Prometheus is targeting gasoline and aviation fuel markets, both of which remain difficult to electrify. For BMW, the investment fits with a broader venture strategy that includes hardware, software and sustainability bets across manufacturing and transportation.
For investors, the deal adds another signal that automakers are hedging their long-term EV exposure with technologies that could keep internal-combustion platforms relevant while emissions rules tighten. The key test now is whether Prometheus can move from a high-profile investment and pilot sales in California to commercially durable volumes at a fuel price consumers will actually pay.
| Entity | Gains | Losses |
|---|---|---|
| BMW i Ventures | ▲Climate-tech optionality | ▼Capital at risk if scaling stalls |
| Prometheus Fuels | ▲Funding and auto-industry validation | ▼Pressure to prove cost and scale |
| Combustion-car owners | ▲Potential low-carbon fuel choice | ▼Uncertainty over availability and price |
| Battery-EV pure plays | ▲Less urgency narrative | ▼More competition from alternative decarbonization paths |



