- NY data doesn't contain information on models, so the data on models is reverse engineered from VIN numbers and is approx. 90% correct
- WA data doesn't properly distinguish BEV and HEV models, so this data is also reverse engineered from VIN numbers and is approx. 90% correct
- If eu-evs.com logic could not determine the model using VIN, it excludes these cars into the dataset, so the number of cars reported could deviate from reality
- NY and WA publish data on a monthly basis
- NY usually publishes data for the latest month on the 2nd day of a new month, but it's far from being complete - some brands provide registration data with significant delays.
In case of Tesla a significant portion of registrations could appear with 1-2 month delay, especially in the last month of a quarter
- WA publishes data for the latest month in the middle of the next month, and there are "late" registrations too, as well as in NY state
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