After more than a decade with the same power units—and the same few manufacturers—the sport wanted to attract some new blood. Drawing in more car companies, which have boards and shareholders to answer to, required acknowledging road relevance and some commitment to sustainability and decarbonization. Since OEMs are all about electrification, that meant a greater emphasis on the hybrid side of the power units. And the veneer of environmental responsibility arrives in the form of heavily audited, fully sustainable fuels.
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