Manga: Not a single company in North America has expressed interest in picking up either the anime or the manga. However, an official Chinese translation of the manga is available in Taiwan.
The original Wangan Midnight arcade game, and the console entries.
The English versions of Maximum Tune 4 and 5 are currently only available in various English-speaking countries in Southeast Asia (eg. Hong Kong, Taiwan, Singapore, etc.) This is despite the card transfer event that lets players transfer their cards from Maximum Tune 3DX+ to Maximum Tune 4ending in October 2013, so if Maximum Tune 4 (or 5) ever gets in other markets, players in those markets will have to start all over again.