Toyota Motor Corp is sprucing up its premium Lexus line with a facelift of its flagship sports coupe for 2017, as the world's largest automaker tries to shake off its reputation for boring designs. Unveiling the Lexus LC 500 coupe at the Detroit auto show on Monday, Toyota President Akio Toyoda said that the new model featuring the brand's distinct jagged grille, was the company's response to years of public criticism about the brand's uninspired designs.