There's a reason why Toyota is becoming so big, it's because it's a mass market car. Honda, Mitsu etc aren't such cars. Although they're mass produced they seek a slightly more refined audience than the uninspiring (with the exception of a few) Toyota cars.
Karachiites would know this analogy: It's like comparing Copper Kettle to some place like Cafe Flo. Toyota ofcourse being Copper Kettle
Or better yet, the competition is just like how Calvin Klein doesn't worry about WalMart. (Toyota being the latter).