The solution is simple. Just don't buy on credit. Save up and pay the full sum in cash. You have a choice. You always have a choice.
Only if "individual freedom" means to be allowed to avoid personal responsibility for paying one's just debts.
You could always start your own car dealership and contend with deadbeat libertarians who whine that it's somehow unconstitutional to hold people responsible for personal sloth and dishonesty--epseically when the creditor is a big, bad freedom-stealing business (by so characterizing the creditor, libertarians are able to rationalize a comfort zone where "sticking it to the man" is a preferred and comfortable tactic).
Of course, when you exercise the capitalist option and become the big, bad freedom-stealing creditor you tend to see the whole situation differently--especially with respect to the deadbeats who eat up your profit margin.