The very top schools provide needs-based aid exclusively. Their formulae are complex and can vary significantly. Your parents types of assets, and source(s) of income, are not weighed the same way at all of the schools. These schools use the CSS Profile application, but some schools ask for certain supplemental questions that other schools don’t.
Back when my pups were applying to multiple top schools, it was interesting to me that some of the schools wanted to know the make/model/purchase date of our vehicles, while other schools did not care. The reasoning given by one FA director was they didn’t want student/parents to “shelter” money in a Lamborghini or collectible car, and then appear to be as “needy” as other students.
Since OP’s question in the post title was very broad, and others in different situations may read this later, I thought this would be helpful. @BelknapPoint noted in #4 that in most cases it doesn’t matter what kind of cars are owned - which is generally true. While there are some situations where the cars owned might make a big difference, especially between two schools, for the cars OP describes, I can’t see them mattering.
OP, try to remember the following when it comes to other people’s financial situation - their situation does not affect you. Depending on your family situation - if you have 7 younger siblings, as well as other twin/triplet siblings that will be in college the same time as you - you might expect a lot more aid than other families with the same income. Once you change one of the many variables in the FA formula, the amount of aid can / will change a lot. So worry about your own situation only - don’t spend any energy wondering if you only had a couple more younger siblings you’d get better aid - because those are things you cannot change.
You have the stats to indicate you may be on track to be competitive for some of the need-based aid schools - but since you describe yourself as coming from “upper-middle class”, most of these schools would expect your family to contribute a sizeable amount, because you can afford it.
There are people who will use legit strategies to maximize their FA application - but it inevitably boils down to making choices that are somewhat unique to their own situation. Some folks will say get in or out of real estate, some will postpone an inheritance, or ask living grandparents to hold off on relatively sizeable gifts to the student until senior year of college, etc. There are plenty of students who have deferred or accelerated a marriage, because of the financial aid implications.
OP, you should be commended on your achievements to date, and especially for being concerned about how much your family will be expected to shell out. I get the impression that despite your family’s financial success, you may not have yet had the family discussion about not just how much they can afford, but how much they are willing to contribute. Don’t be surprised if your parents are still learning about their own options at this point (as some things have changed a lot since they went to college), and they are still forming the strategy that will best fit their situation. Talking to them about this process is both a learning opportunity for you, and an opportunity for them to see you more as a young adult and less like a child. You are getting ready to make an important decision, by getting information first, and considering the impact on others as well as yourself.
Best of luck to you.