I don’t know much about this but IIRC pollution stats are calculated on a per gallon burned basis.If that’s correct it must be noted that my diesel (2014...SCR equipped) gets an honest 53mpg on the Interstate.I’ll bet there aren’t any gas powered cars that weigh what mine does that gets anything close to that.So I wonder how my car does on a “per mile driven” basis rather than a “per gallon burned” one.
https://www.offsetters.ca/education/calculators/car-emissions-calculator
https://www.epa.gov/energy/greenhouse-gas-equivalencies-calculator
https://www.ucsusa.org/clean-vehicles/electric-vehicles/ev-emissions-tool
https://www3.epa.gov/carbon-footprint-calculator/