I can't work out which option is better
Car is $25k. We easily have enough to take the cash from our offset account. Obviously this will affect the interest we are paying on our mortgage (currently 3.5%). I'm trying to work out if long term we are better off financing the car. The dealer offers 8% over 5 years or the more likely option is a personal car loan with 6.5%.
How would one go about working out which one is better? Cash makes sense to me but possibly the interest saved on the mortgage makes finance better?