I think this thread says it all about TT drivers.

http://www.lancerregister.com/bbs/showthread.php?s=4498524b084e87d74e15d1ee41e70126& threadid=11279

 

So let me get this straight:

You like the TT mechanicals.
You like the TT build quality.
But you want it as a 5door estate.
..and you want a proper windscreen to get rid of the letterbox.

Such a car does exist, you're just not looking hard enough!