How we crunched the numbers
Briefly

To analyze vehicle popularity across political lines, we examined 1.7 million car listings from cargurus.com, focusing on local significance rather than sheer numbers.
Our approach weighted county listings against nationwide averages, ensuring a clearer picture of political influence on consumer preferences for various car models.
Strongly polarized counties were identified based on the 2020 election, enabling us to map car models on a political spectrum from red to blue.
Brands whose models attract buyers from both political extremes were deemed 'purplest,' illustrating the potential to bridge diverse consumer bases.
Read at Business Insider
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