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?
How long do you want to take to pay the car back?
Taking the money from the offset account is the cheapest access money you have, BUT it depends on how long you take to pay it back.
So if you want to pay it back in 5 years, then make sure you put EXTRA repayments in to cover this amount you borrowed.
Its silly to borrow money @ 8% when you can borrow it at 3.5% from your offset account.
So whatever the repayments are for paying the dealer loan back, just pay them back into your offset account for 5 years instead, and use the money from the offset account.
This way you pay the money back and a little bit extra. :)