F1 cars will race on Silverstone's new "Arena" layout for the first time at this weekend's British GP.
The new layout, first developed for the Moto GP race held on 20 June this year, cost £5 million and is part of extensive redevelopment at the Northamptonshire track.
The circuit now sees cars negotiating a re-profiled club corner before spearing off the existing GP circuit through a fast right-hander just before the Abbey chicane.
Cars will then brake hard for two tight hairpins at Village and The Loop before taking the quick, left-hander Aintree onto the Wellingston straight (formerly the National straight).
This takes the cars into the braking area for the Brooklands left-hander, for which drivers will be slowing from almost 200mph.
It is estimated that F1 cars will average 156mph around the revised track, lap times being only four seconds longer than for the pervious layout, which was 760 metres than the new circuit.