Soon cars with internal combustion engines will be priceless. Makes sense to but a well made Japanese ICE car and store it for use in 7-10 years.
Assuming that the government will allow you to buy gasoline in 7-10 years. If you are allowed to buy it, it will probably cost more than $10 per gallon.
I am thinking of buying a used diesel vehicle as my backup. Worst case you can run them on vegetable oil.
Store it for your kids to cash in, you mean. A Supra/GT-R/370Z/MX5 with 10,000 miles in 2034 will be carjacked / smash-n-grabbed the first day you take it out of the garage.
Your kids otoh, if properly played out, sell it to a billionaire with his own private 10-mile personal test track in Idaho who sends his own ICE flatbed with ICE-driven security front and back.
If you're smart you'll set up a family trust to make this happen and name it "Red Barchetta". I named mine something different but you do you.