I recently drove a Lexus IS 220 TDI (well I think they called it a TDI and it was 2.2 litre).
I was immediately aware of how, the light sporty car wanted to leap foward but had to wait for the engine at each shift. It made light of hills and long drags in third but didnt like the down shifts or any nippiness.
I came away thinking "My 00 A3 1.6 gasser is a better car and more fun" It was the wrong engine for that car IMO.
In the link below the 1.9 TDI is heralded as the better option over the hybrid prius.
I havent driven a small Audi TDI but I just hope the US isnt put off diesel by someone pushing it as the "Sporty" option.
Diesel has come of age lately, it gives you torque, fuel economy, less yes unbelievably less pollutants but its no pannacea.

• http://www.germancarblog.com/2008/02/audi-a3-19-tdie-who-needs-toyota-prius.html

SIG

Bahia Beige 3.6 S-Line...22" VSR/Kohan
Blue Pearl (Special Order)
Calla White 3.6 4.2 S-Line 20" S-Line 21"
Cobalt Blue 3.0 TDI 3.6 on Chrome 20" 4.2 with step S-Line S-Line
Condor Grey 3.6 3.6 4.2(no S-Line pics)
Daytona Grey (only S-Line) Clear tailights
Garnet Red 3.6 4.2 S-Line 21" Clear Lights
Lava Grey 3.0 TDI 3.6 4.2 S-Line
Light Silver 3.6 4.2 S-Line 21" Clear lights
Mugello Blue 21" 20"(only S-Line)...22" Project Kahn Wheels
Papaya Orange S-Line 21" (Special Order)
Phantom Black 3.6 4.2 S-Line 21"...22" Replica 10 Spoke
Quartz Grey 3.6 3.0 TDI 4.2 with step S-Line Offroad...22"
Suzuka Grey S-Line 21" (Special Order) Clear Lights
Sycamore Green 4.2 (no S-Line pics) Offroad 3.6
*Interior pics* *Roof Bars pics here*