Engine Belts And Pulleys problems of the 2006 Audi TT

Driving down the road and my car stopped running. All the battery-operated functions (lights, windows, etc. ) worked but the engine would not start. I had it towed to a repair shop that told me the timing belt broke while I was driving, destroying the engine. This was not listed in my manual under "scheduled maintenance" and every shop I called said the timing belt should not have gone out so soon. This is something I should not have even had to check for another 20,000 miles and it is ridiculous for me to have to replace the entire engine of a "luxury" vehicle. I have driven cheaper made cars and have never had as many problems as this Audi has caused me. I am at an impasse whether I should invest in a new engine for this car when I cannot trust that it doesn't have other manufacturer's defects that I might not have found yet. I know the 2000-2003 were recalled for the timing belt and the owner's manual was not updated until 2008. Something should be done for the cars that have these defects in the 2004-2007 range.