Does Daihatsu really need Bruce Willis to do the Mira e:S commercial?

With the recent launch of the world's most fuel efficient gasoline-fed vehicle, the Daihatsu Mira e:S, this Japanese kei car maker launched two unique TV commercials for the Mira e:S aired in Japan one day after the car's launch date. So, why would we need Bruce Willis to do this ad? Besides, Bruce Willis is an action star, why would you bring a star in a reasonably priced car commercial?

LOL at that ad where Bruce Willis said it wrong. "DAIMOTSU MIRO OOS!"

Mr. Willis, that's "Daihatsu Mira e:S". ミライース！

ちゃんと覚えるんだブルース。