[EricVR4]

Interests rates just suck now, but it shouldn't be quite that bad. In March of last year I bought my 340i through BMW and financed through them as well at 0.9%. Rates have changed a lot in the last 18 months though.

I bought a 2018 M3 from a Mercedes dealership a month ago and they were quoting me 5.09% and my credit score is over 800. They wouldn't let me finance through them either since I wasn't buying a Mercedes. Their in-house would've been 3.5% which compared to the in-house financing with BMW just 18 months ago, wasn't all that great.

If you don't want to go through the hassle of refinancing you can always just pay additional principal every month to effectively lower your interest rate (unless it's pre-comupted interest).