Is the ND-generation Miata the greatest sports car of the 21st century? If it isn't, it's certainly on the podium. Resale values have been exceptionally strong so far, and that's particularly true for the most desirable "ND1" of all: the six-speed manual transmission Club spec with the BBS/Brembo upgrade.
https://www.hagerty.com/media/news/1-owner-2016-miata-bbs-is-the-real-deal/