You really will need to do the math, but taking the cash is often the better deal if you alreadu qualify for low APR financing.
Example: $25,000 loan at 0% for 5 years will cost you $25,000.
Rebate of $2,000 = $23,000 loan for 5 years at 1.99% and will cost you $24,182. So you come out ahead and you have more equity (possibly less negative equity) sooner.
IN this case if you could not qualify for a rate better than 3.3% it would be better to take the 0% (maybe).
So not a cut and dry when it comes to calculating your best option.
