Click the image above for a high-res gallery.

We've all watched the ALMS Porsche RS Spyder in racing, read the reviews about Porsche's track-ready 997 GT3 RS, and checked out the new Boxster RS 60 Spyder. Maybe some of us (Porschephiles?) have even dreamed about someday owning a classic 1973 911 Carrera RS (pictured above). Porsche's "RS" designation stands for "Renn Sport," or racing, and it is reserved for the highest performing models in the company's lineup.

Wait a second. Doesn't Audi also offer a slew of "RS" models too? They have their hot RS4, RS6, and the lightweight RS8. Now they have plans to bring out a high-performance version of the TT to be called the TT RS...

Not so fast, the team at Porsche is saying. Naming it the "TT RS" is stepping over that thin line drawn in the sand. Furthermore, the "RS" suffix is Porsche's, and it won't be slapped on an Audi anytime soon (especially as Porsche continues to increase its ownership in the Volkswagen Group). Audi may continue to use "RS" as a prefix, but that's about it. Well, that was easy, don't you think?

Related Gallery2007 Porsche RS Spyder

[Source: Winding Road]