I have not been in this market or kept up with these guys in a long time, but I have a friend who is looking to spend about $500 on a suit and I am trying to steer him away from Macy's. I am thinking of places such as Suit Supply and Thick as Thieves. Are there other places that I should recommend to him?
You can't tell anything from those photos. You need to get a gauge and measure the tread depth, e.g., left is 5/64" and right is 3/64" or whatever. It's not likely that it's your differential which is lucky for you since that would be a $$$ repair.
I'd be careful. I did a flush with BMW fluid on a family member's 70k auto transmission and three months later I had to do a full rebuild on it to the tune of about $5k. BMW must go to the ends of the earth to find the most brittle auto transmissions possible.
Not to mention, despite your best intentions, you will not drive it very often. If you end up staying in NYC for a couple years and do the typical once or twice per month drive and then calculate your cost, you'll find it in the high three digits to the low four digits per drive.
Whether you rent a garage space or park on the street, your car will be molested in NYC. There are certainly ballers who still buy $$$ cars and just deal with the damage, but I am not one of them. I gave up my M and got an E30 so each new ding, scrape, busted taillight, etc., wasn't a catastrophe. Truth be told, the E30 was very nearly as much fun to drive as the M, but that's a topic for a different thread.