Ok, here's the update.

The tires are:
    Kumho Ecsta Supra (for more details of these tires check here: http://www.kumhousa.com/Products/PtnDetails.asp?mainCatID=1&PtnID=712&refAction=PtnDetail)

Front sizes:
    225/40ZR18 88W has about 60+% tread

Back sizes:
    255/35ZR18 90W has about 50% tread

Front wheel #1

Front wheel #2

this wheel got the worst of it has a lot of dings all around. Really bad tire installation.

Rear wheel #1

Pictures can't see the scratches, they're really small and unnoticeable

very small ding there, hard to capture with camera

Rear wheel #2

very small scratch