You pretty much answered your own question. Wangan Midnight is based on a manga. Import Tuner Challenge is not.Could someone please tell me the main difference between "Wangan Midnight" (PS3) and "Import Tuner Challenge (X360). They are both from Genki and i saw night racing on highways on both games. So is there a difference in tuning or at the location, cars?
I'm not familiar with the mangas...
http://en.wikipedia.org/wiki/Wangan_Midnight