Phew, I am so grateful that I got 9.5% from VW Finance when I bought my Polo last year!!
I REALLY wish it was forced by law for car dealers to give you the total monthly cost of finance on the advert (even a minimum estimate) when purchasing a car. In my case I was offered R3450 pm over 72 months with a R63000 balloon and a R37000 trade in on my old Renault. I can afford that fine. But then you factor in insurance (varies between R930 me but can be up to ±R1500), GPS tracker (±R250). Add that all up and you are quickly paying R4630 pm over 72 months = R333360!! And flip the car value on my invoice was R233000
This is besides the fact that (worked into my finance) there is R1730 being paid in interest every month, and I have the damned balloon payment of R66300 to finance in 5 years time 
TL;DR DO YOUR SUMS PROPERLY before financing a car!!! If I had done all these sums properly I would NEVER have bought the car. But alas I have it now and enjoy and will just have to bite the bullet...
I REALLY wish it was forced by law for car dealers to give you the total monthly cost of finance on the advert (even a minimum estimate) when purchasing a car. In my case I was offered R3450 pm over 72 months with a R63000 balloon and a R37000 trade in on my old Renault. I can afford that fine. But then you factor in insurance (varies between R930 me but can be up to ±R1500), GPS tracker (±R250). Add that all up and you are quickly paying R4630 pm over 72 months = R333360!! And flip the car value on my invoice was R233000
TL;DR DO YOUR SUMS PROPERLY before financing a car!!! If I had done all these sums properly I would NEVER have bought the car. But alas I have it now and enjoy and will just have to bite the bullet...