One major cost with Tesla is the insurance. I was quoted $380 a month on a model 3. I pay ~$700 for 6 months on 3 cars, 2 of them are 20 year old beaters and one is a new mini convertible.
Just looked it up it’s $899 for the G35 and $913 per year for the Tesla.
It helps to not have had an accident or a ticket in over 10 years.