Well, let's start with your post and break it up a bit.
I noticed that there is a supercharger in Mechanicsburg PA and I was wondering if anyone knew the pricing. I would also be interested in York, Hershey, & Carlisle PA [if anyone has them].
So, download and install the Tesla App. Tap on your ID, slide over until you find, Charge Your Non-Tesla, and go in there.
One can search for a location (Like Mechanicsburg) and, if one taps on an icon, it'll tell you how much it costs.
I am looking at a Model 3, possibly a Model Y (although I prefer a car), I would like to know how tight the turning circle is,
Sorry to be making this short, but the info is under technical specs on the turning radius over at Tesla.com. They don't hide this stuff.
However: These cars don't use McPherson Strut suspensions (which are cheap, but not good at speed), so the turning radius isn't as tiny as one would get on, say, a Toyota Corolla. Having both a M3 and a MY, it's not too bad and haven't had trouble with them in this respect. At all.
how is handles (tight suspension, or does it feel like the car is floating around),
These are Teslas. They do fine at the track. Model Y is a little less bouncy, Model 3 is a bit more. Thing on both cars: All the weight is on the bottom (where the battery pack lives), the motors are down low, so, when in corners, there's nearly no lean. These are cars that can pull 140 mph (on a track), their handling is excellent. The "P" versions have a bit better brakes and such. No floating. They are relatively heavy cars, though: The M3 is just short of 4000 lbs, the MY is just over.
2024 tax credits,
Last I heard the MY tax credits are getting halved in 2024, the M3 credits are going away. Unless you take possession before 12/31/2023, in which case one gets full credit. That's still possible, although getting less likely day by day. You can check with the IRS to get the data on the rebates.
how would you go about getting a referral if you don't know anyone with a Tesla (and what is Tesla doing right now for referrals)
Heck, I'll give you one, and any of the other zillion maniacs around here will do so as well. One isn't supposed to advertise for them, but this is hardly that. You get an email from the sender, then use the link to actually order the car. You
have to use the link when ordering the car, or it doesn't go through. I think right now the recipient gets 500 free Supercharging miles; the sender gets "points" which are redeemable for Stuff. I'd check the Tesla.com web site (just search for referrals) and it'll say.
, and how it performs in cold weather.
Answer: Reasonably well. Get a "P" version, they come with Summer Tires, and those are !#%! in cold weather for
any car, not just Teslas. All the rest come with All Season Radials. Car's got excellent slip control, evenly balanced on all four wheels, relatively speaking, and so does OK. There's a bit of a drop in mileage in the cold, but all Teslas come with Heat Pumps these days, so it's not bad. Biggest problem is charging, sort of: If one charges from 240 VAC (recommended) at home, then there's no issue. At 120 VAC and 12A (which is a standard wall socket) there are problems at or below freezing where the battery needs to get warmed up in order to charge, but the battery heater needs more power than a 120 VAC wall socket can provide. A 240 VAC wall connector/socket is somewhere between $500 to $1200, unless Things Are Weird at your place, but, depending upon where you are, there may be government assistance.
I wish I just knew someone with a Model 3 to test drive it.
Well, you stuck your head up here, I presume you're in PA somewhere. Find a Supercharger near by (See: Supercharge.info for locations, scrollable, resizeable map) and Ask People. Most of the people I've met at such places are enthusiasts, but Superchargers tend to be used by people on Long Trips. Tesla.com will also tell you where there are Service Centers and Show Rooms; getting an appointment for a test drive is trivial.
Maybe I should create a mega thread... or a ton of minor threads... I hate to SPAM everyone. So, I'll start simple at least?
I'd say that you're about to get more answers than you know how to run away from here. And you're not the first one to have asked 
. 
