I just got a new job that is 50 miles away from my house. I don't have a home charger or anything.
Is there any advice or things I should know about the car before buying?
Reliability?
Quirks?
Anything at all....
Using the cabin heater is not free, unlike in an ICEV, although newer Model 3 with heat pump use less energy than older Model 3 with resistance heating. Recent Model 3 do have heated seats, which consume much less energy than heating the cabin air.
Tires do not bulge out from the wheels, so it is easy to scrape the wheels when parking next to a curb. Consider turning on the cameras when parking next to a curb.
If you have sunny hot days in the summer, you may want to install an aftermarket sunshade during the summer months.
Some features that are used when parked like sentry mode and cabin overheat protection can consume substantial energy.
For cars with NCA batteries (Performance model), keeping charge level below 55% may help reduce battery degradation. For cars with LFP batteries (RWD), keeping charge level below 70% may help reduce battery degradation, but Tesla recommends charging to 100% at least weekly, probably to ensure that the BMS does not lose the true state of charge in due to the flat voltage curve (which is noticeably different only at 100% or at low states of charge like under 15%. LFP batteries likely degrade slower than NCA batteries. Obviously, if you go on a long drive, charge to the level needed for it.
Only reliability problem that I have seen on my car is that the rear defogger did not work.
Model 3 RWD does not come with floor mats, so if you want them buy whichever ones you like.
An EVSE is not included. A hardwired EVSE like the Tesla Wall Connector can do up to 48A on a 60A circuit. A portable EVSE can do up to 40A on a 50A circuit with a non-Leviton receptacle, although most portable EVSEs including the Tesla Mobile Connector do 32A or lower. The Tesla Wall and Mobile Connectors are very competitively priced, so it is unlikely that a third party EVSE will be price competitive unless subsidized by your utility company or something like that, or you also want to charge a non-Tesla EV. Non-Tesla EVSEs will have a J1772 plug, which requires using the J1772 adapter included with the car.
Note that the RWD model charges only up to 32A, while the Performance model charges up to 48A.