Design was always the substance of the original Audi TT.
TT at 25: Audi's iconic sports car bows out
Audi TT – The Time Is Now
RE: New run-out Final Edition draws Audi TT to a close - Page 4 - General Gassing - PistonHeads UK
The Original Audi TT is an Undervalued Classic
A Superb Mk1 Audi TT Quattro Coupé with Full History and 39,981 Miles - SOLD!
Mk1 Audi TT Quattro Sport Review: A Future Classic?
Is the Original Audi TT a Modern Classic or Maintenance Nightmare?
Why hasn't Audi changed the (ugly) round corners on the rear of the Audi TT? - Quora
Soon-to-be classic: Audi TT MK1, 1.8T, 180hp, 70K miles. Easy Restore. : r/classiccars
The Mk1 Audi TT is airy, artsy, and impressively affordable - Hagerty Media