Former Ferrari engineer Nigel Stepney, a key figure in last year's spy controversy, has said Formula One no longer interested him.

"Live I have only seen the grand prix in Australia. For me it isn't interesting," he told Gazzetta dello Sport.

Stepney, now technical director at the Gigawave team in the FIA GT championships, refused to talk about the spy scandal because of an ongoing investigation but said he hoped Ferrari retained their world title this season.