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Away from the spotlight, Toyota shows this natural-gas-fired take on its mid-size hybrid sedan.

Toyota reserved its official L.A. auto show press conference for the new Lexus RX350 and RX450h crossovers, but the company also quietly showed off this twist on the Camry hybrid.

As you may have surmised, this concept replaces the Camry hybrid's gasoline fuel system with one designed to deliver compressed natural gas to the 2.4-liter inline-four. Two carbon-fiber-wrapped tanks hold the natural-gas equivalent of 8 gallons of gasoline at a maximum of 3600 psi, giving the CNG concept a 250-mile range. The tanks live in the spare-tire well, so the fancy 19-inch wheels wear run-flat Bridgestone rubber. Toyota estimates fuel economy of 32 mpg city and 34 mpg highway, a sacrifice of just a single city mpg against a standard Camry hybrid. The mileage may not be much different, but combusting CNG results in fewer particulate emissions versus burning regular gas, so the CNG concept is cleaner.

Keep Reading: Toyota Camry CNG Hybrid Concept - Auto Shows