This is not a moral question. It is an arithmetic one, and the answer depends on what else your money could be doing.
The opportunity cost test
If your capital is earning, or offsetting a mortgage at a rate above the finance rate after tax, financing can leave you better off even after interest.
If the cash is sitting idle, paying outright is usually the cheaper path. Run the comparison with real numbers rather than instinct.
Business deductibility
For business use, interest on a chattel mortgage is generally deductible and depreciation is claimable, subject to the car limit. That changes the comparison materially.
Your accountant should confirm treatment for your structure before the vehicle is ordered, not at tax time.
Balloon payments
A balloon lowers the monthly repayment by deferring principal. It suits predictable replacement cycles and disciplined planning.
It becomes a problem when the balloon exceeds the vehicle's value at term end, leaving you paying to exit a car you no longer want.
Cash flow and flexibility
Retaining liquidity has value that does not appear in an interest calculation, particularly for business owners with variable income.
Check early payout terms too. Flexibility to settle without penalty is worth more than a marginally lower headline rate.