Agree, especially on that in bold. Really focus on the car you want, best if just one car only so you can do proper research and really know it inside out. So when you go to the dealers, you really know what you're looking at and also can counter any bullshit that the sales will throw at you. If the sales get the impression that you're very knowledgeable about the car, then they also think twice before conning you or talking all sort of BS to you. This impression they got of you is important, you must not come out as a newbie or one that does not know much about cars. Visit and test drive as many as you can of those that seem to fit your budget and criteria for that particular car. This activity will give more experience & knowledge to you when you compare them.

Well for mine, I found out that they put a wrong spark plug type! They put the same plug as other regular Toyota's (Camry, Estima, etc.) even though my Toyota GDi engine plug type should be different. They probably already stock many of those normal Toyota engine spark plugs so they just use it on my car. The car indeed still run fine and no problems but probably not ideal. Found out this when I brought my car to a Toyota/Lexus specialist, so then need to change to proper ones.

Unless you buy recon which is only like 1-2yrs old, then the rest 99.9% recon car mileage is already rewound back! What you need to do is examine the interior closely, see how the leather & upholstery condition especially the driver seat, steering, shifter, driver side knobs/controls, handles, and pedals to determine the usage. If they look very worn out then surely mileage already pretty high. If they're still in pretty good condition, then should not be too bad, maybe rewound by about 20-40k only instead of 50-100k!

Focus on the car first, not the dealer. So find as many cars then test drive them from as many dealers, then compare. Only then you can get the best price with the least chance of getting cheated. No point recommending dealers if they don't have the car you want, and most of them are the same anyway which is trying to con as much money out of you!