Ryton designed a revision, the ER189B, for the 1990 Formula One season. The team hired Brazilian Roberto Moreno and Italian Claudio Langes, and while the car was not bad there was no money for development, despite the best efforts of Dutch engineer Kees Van der Grint. Moreno only pre-qualified on five occasions and raced twice, finishing 13th in the 1990 United States Grand Prix, after qualifying 16th, ahead of Nigel Mansell. Langes never escaped from pre-qualifying. The team closed down at the end of the European season, and did not compete in the last two races of 1990.