Not sure where you've seen this . There's absolutely no mention of a new series, or any current TV show, on their website. The only reference to a 370Z on the website is their test drive over a year ago.
Have you by any chance seen a preview of a repeat on some random satilite channel???
They did mention,and show some of the scenes of the 370z and another car, in their " and in next weeks show".... etc.
Also, mentioned by another owner on http://forums.**REMOVED**.com//index.php?showtopic=28944. He states its on 17th June.