Dishonest with BAD Service

In mid-April 2014 I purchased a used vehicle from CMH Datcentre Highway. They are in KZN and live in JHB. I saw the vehicle on the internet. Soon after taking delivery, I informed the dealer that I was not happy with the vehicle as there were obvious and serious latent defects which were not disclosed. I requested a reversal of the deal but was told that it is not possible. I had the vehicle inspected by Toyota and also had a comprehensive DEKRA inspection done all at my expense. Things were worse than I thought. I informed CMH of my findings in writing and again asked for the deal to be reversed telephonically. No joy again. Since then I have incurred expenses which I should not be liable had CMH been honest with me from the start. I would NOT have bought this vehicle from them had all this been disclosed. I am at a point where I want CMH to buy the vehicle back from me at its original purchase price plus all the expenses incurred by me barring wear and tear. This is not what was expected from a reputable dealership. MOST UNHAPPY.