you are correct: Audi will be launching at least three new models next month at the Frankfurt Motor Show, two of which seem like they have a good chance of coming to North America and one that doesn't. The A4 TDI clean diesel will make its debut at the German show with the latest edition of the firm's 3. 0-liter diesel V6. While the TDI V6 has been available in the current-generation A4 since it launched early last year, the new one adds the same 2,000 BAR common rail fuel system and urea injection found on the Q7 and VW Touareg now available in the U. S. market. The V6 TDI A4 has always seemed like a natural fit for the torque-loving American market and it now seems likely to arrive, especially since the gas V6 was discontinued for 2010. In sedan form, it's rated at 34. 6 mpg (U. S. ) which is consistent with what we've seen driving the existing A4. the smaller 2. 0 uses internal EGR as the Cummins does to meet smog.