Being very honest: if you care about the environment you should forget about owning a personal car.
I love cars, I raced in karting, I did some racing classes in GT cars ranging from 300-500 hp and had lots of fun with it, I used to drool over cars and specs and engines and dreamed about buying and maintaining my very own rally Subaru to be able to run some courses as an amateur and all of that jazz.
I care much more about the environment than about cars, this hobby as it is should die if we want to live in this planet, personal cars are an abomination and a waste when people let them sitting parked for 90+% of the time, the amount of resources wasted to manufacture and maintain all of this fleet is mind-boggling...
I understand in the US where people with families NEED a car because urbanism there sucks but if you don't NEED a personal car and can live with a car-sharing service or at least reduce from a car per person in the family to a car per family it's already a huge change.
Check a bit your entitlement, a lot of things will suck in this transition to a more sustainable economy, everyone will be a bit inconvenienced but in the long run it's a much smaller inconvenience than having to deal with mass dying of fauna and flora, mass famine, droughts, migration and social unrest. And wars.
EDIT: Also adding that another huge change that I've done for the environment is stopping consuming meat. There is no point, we eat it because it tastes good and that's it, some people might need some nutrients from meat but for the vast majority of the population a meatless diet is completely fine, if you want to eat meat then make it count, stop eating that shitty hamburger from McD and save yourself to eat meat as a treat, a very nice dinner with a steak that you know the origin.
I'm originally from Brazil and I feel disgusted about how much mindless meat we eat there, every single day for multiple meals a day, it's staggering that no one bats an eye on the impact of that... And when I bring the topic up it's like I'm offending people personally, like eating meat is a right, it's the simplest way to change your behaviours and have some impact as it doesn't depend on anyone else nor any major change in industry.
/rant