Toyota says it’s made several advances to hydrogen fuel cells that will make them significantly cheaper, and will allow the company to sell a car using the low-pollution technology in 2015—years before its competitors.

The car will be expensive: between $50,000 and $100,000. But that’s a big improvement over the million-dollar cost of experimental fuel-cell vehicles in years past.

Toyota will display a concept version of the car—featuring a fuel cell instead of an engine—this month at the Tokyo Motor Show. While the concept car might not outwardly resemble the final car, the fuel-cell system inside will be worth looking at because it will likely be similar to the one in the production version. Toyota says the fuel-cell system is smaller and uses much less of an expensive ingredient—platinum—than earlier versions.

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