to answer your question, yes u can get a highest level recond car which u can google...symbolize almost perfect
technically yes it is an almost brand new car below 1000KM
yes they do exist....there are 2 examples
1. these are display cars
2. someone bought it brand new and store it at a store room/store yard for 1 year thn ship it out(customer requested a brand new car)
both of these cars will score the highest level on the chart

you don't grade your car yourself bro
the auctioneer is the one that grade your car thus producing the slip that everybody wants at the end...the one that u can pay to scrut for it to verify