I give up (again) on leasing and will do a PFCU 1.99% loan.
There is nothing wrong with purchasing instead of leasing, especially if leasing makes you as uncomfortable as a few of your posts have mentioned. leasing is not the end all be all for getting a BMW.
With that being said, 57% is not low for a residual, it is more realistic than some other BMW residuals but its NOT "low"
Regular BMW lessees have an expectation of inflated residual values which do not line up with reality, and BMW itself has helped perpetrate that.
These boards would have you think that any residual under 60% is "low" for example, and thats simply not the case unless you are comparing it against the fake residuals BMW has been using, and not "real" value of what a car might actually be worth 3 years from now.
For your loan that you are getting, if you were to sell your car in 3 years, how much do you think you would actually get, if the car had 30k or so miles on it? I would bet it would be somewhere between 50-54% of whatever you are paying now, which would be the "real" residual... not the inflated 60s that people seem to think is the appropriate numbers.
People that post here that have access to nada guides and stuff would probably say the value is closer to 50% than 60% left after three years.
If you are purchasing, you probably are not selling again in 3 years though, so that model wont work for you (and again thats totally fine!) Just like some people refuse to be in debt so wont finance a car at all there is no one size fits all.