One week ago, I purchased a vehicle from a Car Dealer yard in Perth. I inspected the vehicle myself and deemed it to be in very good condition and agreed to purchase the vehicle and paid a deposit. The following evening, I paid the remainder of the purchase price and took delivery of the car. Two days later, the car began to emit a large amount of white smoke from the exhaust on startup. The smoke stops after about 30 seconds to 1 minute however this is obviously a major concern. After researching what could be causing the white smoke it could be a number of issues ranging from minor e.g. Valve Seals need replacing to major eg. Worn Valve Seats or possibly a blown head gasket. The car definitely did not produce any white smoke when I inspected it or took delivery of it - if it did I never would have purchased the car in the first place. I suspect the dealer may have "tampered" with the vehicle in order to get it to stop smoking temporarily using some kind of additive - that is purely speculation of course. The car is still under the Statutory Warranty of 1 month for its age/klms. I have notified the warranty provider of the issues and was advised to book it into the dealers nominated mechanic to inspect the vehicle and provide a report and quote to the warranty provider before making any repairs. I won't know what the issue is until Friday this week, unfortunately. In the event that the issues with the vehicle are major or require me to pay additional costs that may not be covered under the statutory warranty what would be the best course of action for me to either: a.) recover those costs from the dealer or b.) recover the entire cost of the purchase of the vehicle. Any guidance would be greatly appreciated.