heres a link that sums it up quite nicely i think

List of automobile manufacturers - Wikipedia, the free encyclopedia

they havent mentioned the renault nissan tie up though


edit nikhil beat me to it

edit 2 - lexus is just toyotas luxury or premium brand right.. would that be classify as being owned ?

similarly nissan are sold under infinity and hondas under acura right ?

and mazda is owned by who now ? ford ?