Huippunopeuden ristiriita
katso Crossrail#Rolling_stock - huippunopeus 160 tai 145 - vanha linkki on kuollut - uudet linkit kertovat 145 http://www.crossrail.co.uk/assets/download/4962 tai http://www.railwaygazette.com/nc/news/single-view/view/crossrail-rolling-stock-contract-invitations-to-negotiate-issued/archiv/2012/02.html ..