Car buyers in the US buy cars based on their knowledge of the business owner's political leanings? That seems like the wrong metric.
Musk is an exception.
A lot of people have a Toyota Tacoma and a commuter sedan in their driveway because they didn't like the image of daily driving an F150 despite the latter yielding comparable results for less hassle (and probably less money).
This just sounds so alien to me, does anybody really care that much?