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-   -   Honda Researching Advanced Hybrid Drive with Rankine Cycle Co-Generation (https://www.team-bhp.com/forum/technical-stuff/35859-honda-researching-advanced-hybrid-drive-rankine-cycle-co-generation.html)

Honda is trying to use the heat from exhaust to drive a Rankine cycle steam turbine. Its use is to charge the batteries during highway cycle which currently is not achieved.
More info at
Green Car Congress: Honda Researching Advanced Hybrid Drive with Rankine Cycle Co-Generation