So I've been looking into an extended warranty for my 2013 M6 with 32k miles. Your data has been very helpful. My local BMW dealer sent me pricing from Warranty Solutions "five star".
https://www.warrantysolutions.com/do...20brochure.pdf
Pricing seems fairly reasonable:
24 months or 24K miles .. $3653
36 months or 36K miles .. $4728
48 months or 48K miles ..$5711
60 months or 60K miles ..$7764