I think you’re not getting enough discount here. Just worked on a similar car 36/10k with higher MSRP of ~$67k. Discounted to ~$55k. Came out to $588+ tax/mth. 10 MSDs later brought it down to $538+tax/mth. $2400 DAS (bank fee, tags, dealer fee etc…). SoCal deal
You surely have more room to negotiate here. Good luck!