The Williams FW11 proved to be the fastest car on the grid in the 1986 season but it was let down by its poor reliability. Driver Nigel Mansell ended runner-up in the driver's championship.
For the 1987 the problems were ironed and the modified car was named FW11B. With the problems out of the way there was no stopping the Williams duo Nigel Mansell and Nelson Piquet. Eventually Piquet won his third championship even though with 6 victories Mansell had won twice as many races he ended the season as runner-up again.
At the end of the season Honda left the team to join McLaren and this ended Williams' domination for the time being.
This FW11B is still owned by Williams and is seen here in the paddock of the 2002 Goodwood Festival of Speed where it was demonstrated by ex-Williams Grand Prix winner Riccardo Patrese.