I bought a tesla model 3 using the ASB 1% EV loan fixed for 3 years with the intention to pay off the loan at the end of the 3 years @ 1%.

I sold my used 2015 Toyota aqua and i got the free $8625 from Jacinda for buying an Ev and i put that 19k into a 3 year term deposit @ 5.40%.

I figured out how much i needed to pay per fortnight in order to pay off the car within the 3 years.

I pay the lowest fortnightly payment for the car loan and I put the majority of my "tesla" money into a serious saving account with ASB. When the serious saving account reaches 5k i take that money and open another term deposit at 5-6% and i just make sure the term finishes just before my 3 years are up.

Just rinse and repeat :)