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Belgium does (did?) the same. Engine size was the number one driver of tax. Then turbos came along and engines started to shrink, so tax went down. As an ans
by WirelessGigabit 4y ago
Belgium does (did?) the same.
Engine size was the number one driver of tax.
Then turbos came along and engines started to shrink, so tax went down.
As an answer to that CO2 taxes were introduced.
Then companies started to aim for <= 99 gram CO2 / km, with super-small diesels.
But then the report of VW's number fudging came along which caused a shift towards gas again.
I don't know now how it works today, with EVs and small gas ICEs with big turbos etc. I do know that they mandate DEF on diesel cars, and OPF on gas cars.