Later, in 1996, ISR started racing in Super Touring with Audi 80 quattro and Czech driver Josef Venc.

In 2001, the team prepared cars for the FIA GT Championship with Tomáš Enge, Justin Wilson and Antonín Charouz.

The team also raced in Formula BMW ADAC in 2003, and the Recaro Formule 3 CUP in 2004.

In 2005 and 2006 ISR took part in the Formula Three Euroseries with Filip Salaquarda but they failed to finish any race in a point-scoring position.

ISR will take over the RC Motorsport team's entry for the 2010 World Series by Renault season.