I found the car I like over the internet site.
The car at the used car dealership.

Friend run the autocheck report and he told me that there is accident report with the police.
The car then sold to the auction and this car went to the dealership now.

I plan to go see the car next couple days and I will test drive.

But should I stay out from the accident car?
Can I get some discount since they were involved with accident?

how bad a accident

Is the car "alot" cheaper because of it, major repair should lower value 20 to 30 percent of resale

But then my personal car had two minor accidents last month alone.
** I was not at fault on any of them

Heck my last car I traded, I bet that accident report was 10 pages long, but it was a great car.

Best thing, knowledge, have it checked out by a mechanic and/or someone who knows body work, check for frame damage

First, typically only serious accidents show up on the CARFAX type reports. If the repair was done well it should not adversely affect the cars performance. Second, since it has been repaired and auctioned, it's selling price should be between $1500 and $2000 Lower than retail price as determined using NADA or Edmund's Blue Book. If you want better technical advice, request you be allowed to take car to a mechanic to inspect for repair quality and otherwise vehicle condition/defects. If dealer seems hesitant, that should be a definite warning sign. Many reputable used car dealers will let you see the Carfax report up front.