The Rich do not use their cash to purchase liabilities. They make use of their cashflow machine to purchase those liabilities. In the above video, most people will pay a deposit for the vehicle and pay $150,000 over the next 10 years.
If you are willing to wait for 10 years, you would have accumulated $150,000. And you will use that $150,000 and place them into a Cash Flow Machine. The Cash Flow Machine will generate a consistent stream of cash flow for you. You can then use the generated Cash to purchase your vehicle.
Similarly you can also use the generated cash to purchase your property or other liabilities that you want.