The most senior "Formula Renault" was the Formula Renault V6 Eurocup started by Renault to run as part of Eurosport's Super Racing Weekends (ETCC and FIA GT Championship). Only two seasons were run between 2003 and 2004 before Renault left Super Racing Weekends and merged the series with the similar World Series by Nissan to create the Formula Renault 3.5 Series as part of the World Series by Renault in 2005. In 2016 the series became the World Series Formula V8 3.5, which folded in 2017.