24, $88k salary. Is trading my Mazda CX-50 Hybrid for a Tesla Model 3 at 0.99% a bad idea?

TL;DR: 24 in MI, $88k salary, thinking about trading a functional 1-year-old hybrid with 25 months left on the loan for a Tesla Model 3 at 0.99%/60 months. Lower monthly cost, better QoL, but restarting the clock. Dumb?

I'm 24, soon finishing a rotational program in Michigan. I'll have a guaranteed promotion in about a month and a half, with a pay bump of about 6-12% (though I'm not using what-if money to calculate the numbers below).

Current income is a little over $88k gross, ~$4,400 take-home (post tax + 10% Roth 401k contribution). No high-interest debt + renting with my partner, so some expenses are split.

• Currently have a little over $16k in my emergency fund (~5-6 months of essential living expenses)
• Additional liquid savings of ~8k in a cash management account
• Full employer match on Roth 401k
• Haven't opened a Roth IRA yet (though planning to soon)

Current car:

• ~17,000 miles
• ~$18.5k remaining on loan, 1.99% APR, 25 months left on what was a 3-year loan
• Monthly payment ~$759
• Insurance: ~$231/mo
• Gas: ~$150/mo
• Maintenance: ~$40/month (oil changes, filters over a year)
• Total monthly costs: ~$1,180

I could sell the CX-50 to Carvana and make a little over $11.5k in positive equity to use as a down payment. The new car would be a 2026 Tesla Model 3 Premium RWD; $44,140 OTD w/ dest. + order fees, minus $500 for a student discount (work covers my tuition).

New car:

• Financing ~$30,400
• Rate: 0.99% for 60 months
• Monthly payment: ~$519
• Insurance: $196/mo
• FSD: $99/mo
• Increased electricity costs would be essentially zero; I get free charging at work, which would cover my commute
• Total monthly car costs: ~$815

I'd be looking at a monthly cash flow improvement of about $365/mo; I currently have a monthly buffer of about $125. Also, this would be sitting at 19.5% of my take-home, which passes the 20% rule. Even though the car is more expensive than my CX-50, I'd be getting a serious QoL improvement with FSD for my 4x a week 50-mile commute, a good increase in monthly cash flow that I could fork into a Roth IRA, essentially free money with 0.99% financing, and I tested + loved driving it.

I'm second guessing b/c the CX-50 works perfectly fine, I'm 25 months from owning it outright, and I technically need the 60-month term to fit the 20% rule (though the low interest makes up for this).

Am I rationalizing a want as a need here?