I do lots of track days, but not in my company Tesla. Nothing stopping you taking a stock car on track. Some thoughts...
* Your insurance doesn't cover it. You can get a days track insurance but do not expect it to be cheap. On trackdays, you are responsible for your own car: someone drives into you, tough. You hit someone else, tough on them and you
*Your road tyres won't last long. You want them at lower pressure than stock so when they heat up they're not over pressured. You'll get at least a day out of them but potentially not more on stock rubber and geo
* Your brake pads won't last long either, and you need to prepare for brake fade
* There's nowhere to charge it at a track (bar granny charger) so doubt you'd get anything like a day out of it, you will use way more power than on the road
* Most trackdays offer cheap instruction. MSV for example charge about £25 for 20 mins with a pro in passenger seat. This is WELL worth it if your first time
* Watch YouTube vids of the track to prep. The Driver 61 series on YouTube is well worth watching if you're new to track days
* Most trackdays will rent you a helmet which is mandatory. Personally I only wear cotton long sleeve top and trousers on a track in case of fire but in a hard top you are allowed anything so long as you have a helmet. Use thin soled trainers.
* Go on a road car day if you can, it's no fun being blue flagged constantly because a cup series has decided to get some practice in
Would love to try mine at my local circuit, Oulton, but given it's a company car that's not gonna happen. A lot of drivers cover plates with tape as it has been known for insurance companies to get upset if they find out you track cars