Not OP but Teslas I've seen around the Bay Area while driving around have Big Altima Energy. If someone's driving high above the speed limit, swerving through slower traffic like their life is in danger, or doing a U-turn on a two-lane street in the middle of rush-hour its usually a Tesla Model 3. On the other hand, where I grew up it always seemed to be Nissan Altimas that had this kind of energy. I think the stereotype is not really about individual drivers so much as its about the popularity of the vehicle and its performance characteristics.

Both the Nissan Altima and Tesla Model 3 sell very well and are entry level ("entry level" here meaning entry level for the class of vehicles one is looking for, there are entry-level Mercedes' for instance) sedans with power behind them. So you have a lot of them both on the road, and thus more people who likely treat them as disposable and thus drive them recklessly. Any car that is super popular usually is popular enough that enough of the wrong kind of drivers have it, and so you can start stereotyping them. I think Model 3s have a lot of the wrong kind of drivers on the road. Maybe many of them care about saving the environment but they don't drive like they care about the car.

A vehicle driven by people who engage in douchebag behavior.

The stereotype in the US is anyone driving a BMW, and any sort of lifted pickup. A non douchey vehicle, as a class of vehicles, would probably be a minivan, a Camry, or a Civic.

Not original commenter, but I think metrics of douchery probably vary person to person. Personally, the number of pithy vanity plates specific to the vehicle's energy source is what does it for me. I think it speaks more to the occupant and their outward projections & posturing than the vehicle.

thinking of the South Park fart smelling prius meme.

FTR - I have no problems with EVs, but I do give myself a good chuckle when I see someone who was proud enough of their vehicle purchase to turn their it into a billboard advertising something / someone (Musk) who has fallen from social grace.

I was gonna say the Prius, but that has its own douchey reputation.

I guess maybe a Camry? That’s a boring practical car that doesn’t carry much stigma.

One associated with Mr Elon Musk, and one which is not.

You choose who and what you associate with in this world, and your car is one of the things which, whether you like it or not, will define perceptions of you.

A premature rocketulation man-baby is not who I want to associate with or help fund.