欧版雅阁 is the sportier version. It is sold as ACURA TSX in USA. Price is similar but more luxurious in ACURA TSX since ACURA is the priemium brand of HONDA. It is same for lexus is the priemium brand of TOYOTA.
美版新雅阁 is a family car so the size is first priority.
What is the China verion? 美版新雅阁 or 欧版雅阁?