ニューエイので比べてみる

RB4(2008) https://upload.wikimedia.org/wikipedia/commons/thumb/5/52/David_Coulthard_2008_Canada.jpg/1280px-David_Coulthard_2008_Canada.jpg
RB5(2009) https://upload.wikimedia.org/wikipedia/commons/thumb/8/83/Mark_Webber_Jerez_Mar_2009_4330_%28Cropped%29.jpg/1280px-Mark_Webber_Jerez_Mar_2009_4330_%28Cropped%29.jpg
RB6(2010) https://www.autocar.co.uk/sites/autocar.co.uk/files/styles/gallery_slide/public/1021010105211591600x1060.jpg?itok=Rgje85ea
RB7(2011) http://livedoor.blogimg.jp/markzu-photo/imgs/1/e/1e9e0ca5.jpg