Biggest mistake

I would like to start with saying that initially I was exceptionally impressed with the customer service delivery at this particular dealership which in turn assisted me in my decision to buy a vehicle from them. Little did I know that I was buying a vehicle with a cracked engine block / head. The vehicle has it's complete service history and this is not something that can be picked up in a general service. Granted, but when buying a vehicle from an independent the thorough checks done has now led me to believe that this dealership was completely aware of the fact that the head was already cracked. They went on to sell me an extended warranty which I then proceeded to include for peace of mind, well, so I thought. I am now of the opinion that this dealership receives kick back from this particular Warranty provider in order to push their product. Once the vehicle was bought I had the service completed as prescribed (service plan). In a matter of 6 and a half months after purchasing the vehicle the engine ceased. I would urge any individual buying a vehicle from this particular dealership to take your own mechanic and engineer with you in order to check the validity of the condition of their vehicles. If you choose to not take the precautionary measure you might find yourself in for an additional R137 000 that the Warranty company advised by the dealer will reject to pay without any formal process. This will lead you to a fair amount of options to exhaust after which you will eventually have to give up as no one will be willing to assist you once they have your money and all sales are concluded there is no care in the world.