G30D

Grab a Segway from Walmart. Get a kryptonite chain lock to keep it safe. My Segway DLX 2 pro would exceed your needs and I got it for $300. The dlx 2 plus is like $200 and would work too.

With that budget id get a ninebot g30 honestly.

I think E-Bike is much safer. I drove my g30 for one winter to work because i had no other option. Man i remember sometimes when i drove over ice and felt my wheel spinning on ice.... it was a hella scary feeling.

Ninebot Max G3 is IPX6 and it’s battery is IPX7 Not the highest but quite good. I also have the G30 and after a full year of daily use in all weather it has zero signs of moisture inside.

Bout 14 on Sport limited to 20mph Daily commute mostly flat with one steep climb at the end of the return trip. The hill totally stops my G30 but the G3 maintains speed all the way up and loses 3mph on the last few yards at the highest steepest part.

My Long- Range Ninebot G30 Original battery had 551Wh for 35km real world range Now it got a 1900Wh battery within the same space for 120km range. 2 hours charge time

For 45-50km/h I would recommend a Kukurin g2 (not the pro, its in my opinion inferior to the standard G2 (800W, 48V 15Ah (0.8Ah less then the g2 pro). The g2 has better suspension, a quick fold system and the g2 pro takes a bit longer, is less complex to work on and stabler. I own a g2, so I know what I am talking about, but Im also a bit biased😂, 3500km ridden and the only problems were my fault. It would cost €450-500 new, but you can find basically new ones for €350-400 second hands. My g2 range at 3500km, 190cm 85kg, is at top speed 20-25km but easily 50+km at 25km/h. For legal scooters, Ninebot g2 max or g30 are fine options. They are 'worse' in terms of speed, battery and suspension for the same price as Kukirins, but they are legal. If you buy them in a shop, you can get warrenty (2 years often) I would avoid expensive brands, maybe look at Kukirin, Ninebot, (Xiaomi maybe but they could have worse quality). It depends on your needs, Kukirin is a good all-round choice but illegal, Ninebot is legal but imo too expensive for what you get, Xiaomi is meh

With your weight, almost any adult scooter is suitable for you. Given the short travel distance, scooters with small batteries are also suitable. I would consider Ninebot scooters, as they have more reliable electronics, and the mechanical parts are also quite reliable. For example, Ninebot scooters Es series (Es1, Es2, Es4), F series(F25, F35, F45), G30, G2 (used ones can be bought for $ 300, and this would be the best solution for the money), E2. Of all the scooters listed, the Es series has a folding mechanism, which makes it easier to store it leaning against the wall, placing it on the front wheel, and using a wall mount. Other scooters can also be stored in this way, but due to the design features, they will bulge strongly from the wall, and it is not very convenient to put them on 1 wheel. Xiaomi scooters also performed well, such as the m365, m365 pro, etc. Inexpensive kukirin scooters can also be considered, but they often have mechanical problems, and the electrics sometimes fail, although due to their mass production, spare parts for them are cheaper than for other scooters.