If "invest what you don't pay" is the only benefit to buying a very quickly depreciating asset then you're not a very good investor. Buy a used car and invest

If "invest what you don't pay" is the only benefit to buying a very quickly depreciating asset then you're not a very good investor. Buy a used car and invest the bulk of the cash (if you actually have any). Can't get great deals on used car loans compared to new. Fees/depreciation quickly kills the allure of a good rate. If your user credit cards for rewards you don't realize that it actually makes you spend more money than you're getting in "rewards".