There seems to be a bit of a domestic disturbance between Suzuki and Volkswagen. According to The Truth About Cars, VW is a bit upset that the corporate tie-up between the two automakers hasn't borne more fruit. If you believe the whispers sneaking around the web right now, the German company even went so far as to leak its frustrations to the German press, saying that partnership is "a big disappointment" and that Suzuki expects full access to VW tech without having to reciprocate. Suzuki, meanwhile, says that's not the case.
Osamu Suzuki himself took to his company's blog to say that the two automakers entered into the agreement as equal partners, and that Volkswagen has no say over how Suzuki conducts its business. What's more, the engineers at the Japanese company didn't find any Volkswagen tech worth borrowing, and that if it decides it needs any assistance, it will look toward other manufacturers.
Even so, Suzuki said that both companies are continuing dialogues to discover ways to work together in the future, which means we can still hold out hope for a TDI GSXR.