I'm pretty underwhelmed with my Hankooks. We got the car this spring CPO, so the car was aligned and had at least 6mm of tread depth per the contract CPO contract. My service center been able to locate the documents beside the service record so I don't have any of the tread measurements or alignment specs. I'm taking Tesla at their word that it the service was performed correctly.
The car came with Conti Extremecontact DW 245/35ZR21 which had about 4K miles on them. We replaced them at 7K miles as they were down to 2 mm in some of the tires and 3-5 elsewhere. I had a fair bit of fun when I first got the car.
After reading this thread, looking at others here and across the web, and a lot of going back and forth between the Hankooks of Michelins I thought I'd give the Hankooks a try as they did well on my previous car.
I got the Hankook Ventus V12 evo2 from tirerack.com and had them mounted and road forced balanced by one of the local recommended installers at the end of August. I've been trying to be nicer to my tires, not launching off the line and in general trying to keep my accel to 80KW.
Last week I had the car in for an unrelated service and I asked for the tread depth to be measured and came back with 6 mm on the fronts and 4-5 mm in the rear. The tires had 3200 miles on them, mostly around town as my kids taxi and one road trip to Southern California.
To be fair, the road noise is as good or slightly quieter than the Contis, the traction is as good or better, the Watts/Miles is about the same, but the tread life seems to suck. The tires don't have a tread life warranty like the Michelins. Next time I'd spend the extra cash and get the Michellins. At this point I'm hoping that Santa brings my some 19s and some Michelin rubber.
As always, your mileage may vary.