Mazda’s Most Powerful MX-5 Miata Debuts With Race Car Spec Mods! A rare, limited edition MX-5 was launched at the Tokyo Auto Salon in early January in Japan, and it seems as though we may not be getting it. The fourth generation Miata MX-5 (ND version) is celebrating its 10th anniversary in 2025 and to mark the moment, Mazda has just launched the ‘MX-5 12R’ — the most powerful factory model ever, and the most desirable MX-5 Miata ever. But sorry folks, it’s looking like we won’t be getting any.