Interesting comments from Vettel about the climate change relevance of the F1 hybrid power units
https://www.autospor...brids/10310787/
I think he has a point as the regen. which boosts economy relies on massive de- acceleration rates which are irrelevant in road cars. Obviously you can harvest power quick and fast or slow and low for same KWH's but , as I understand the whole battery design is different and F1 uses only quick and fast.
To throw a retro rock in as well, US Sprint cars develop the same 900 bhp and use 100% non fossil fuel, they only weight 650KG too!