Few things seem to hit the same note of contempt with certain motorsport fans than the mention of alternative power - whether that's electric, hybrid or hydrogen.
Some believe that alternative power is symptomatic of motorsport's increasingly exorbitant cost, and nothing more than a complicated marketing gimmick. Others use it to point out the disparity between Formula 1's haves and have-nots, suggesting that it is the antithesis of competition. You only need to look at how Formula E still receives pointed barbs from both within and outside the motorsport sphere, despite now being an established series - and in its sixth season.
But one of the most outspoken critics of alternative powertrains has performed something of a U-turn this year, however nuanced his argument is. Back in 2018, DTM boss Gerhard Berger spoke openly about hybridisation needing to be more than just a marketing "gimmick" for the DTM to take such an approach.