High-performance versions of the 'bathtub' NSU; TT gets bigger 78bhp engine with twin carbs in 1968. The 996cc is the hairiest of the bunch, with 84bhp (optionally 102bhp) and a potential 100mph. Much-loved by German historic tin-top racers.
- 1085cc/1177cc/996cc (S4 OC)
- Rear engine, rear-wheel drive
- Production dates:
- 1965 to 1971
- Number produced: