Sold a car that blew up days after purchase

I purchased a car from one their sub dealers (auto arena centurion), would not recommend. 1. Blown motor due to modified software on the car when sold 2. Car was sold with a suspension damage that they didn’t repair because “it’s a consumable” 3. I was told there was a logbook, 3 months later there’s still no logbook 4. I was accused of doing the modified software myself afterwards, and that was used a reason to not repair All in all this car costed me over R100k after purchase so beware