Spent 96k on 2 cars which will cost almost 40000 to fix.

I bought 2 cars on the 17 th August 2019. I paid 96000 for 2 cars. The first car has a head gasket problem coasting me 20000 to fix. The second one has an electric problem with a timing chain problem another 18000 to fix. Not told about any faults on the cars. Now I am sitting out of pocket with cars that I can’t use. Bidvest is backing Burchmore’s because they look like the like what is happening to us. They say there s not duty to repair which I understand on cars that are not running cars. Bidvest you are supposed to be a good company to deal with. How do you sit by and watch people been ripped of. How do I survive now. All my funds saved went to buying these cars. Please don’t do this to people with lies and deceit. So what is the way forward now Bidvest?