Alfa Romeo Forum - View Single Post - Power of the 1750TB in different modes
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Iron Wizard
Status: Needs cleaning
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Join Date: May 2009
Location: United Kingdom
County: Cambridgeshire
Posts: 619
In the UK these things are, as far as I’m aware, done using the manufacturer’s declared ‘official’ figures. So for road tax purposes, for example, the banding is determined by the official CO2 figures. The alternative is to put each individual car on a rolling road.

Is there nothing in state law/regulations that says where the power-to-weight figure has to come from?
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