THE S' emblem that spells extraordinary performance in the Audi range graces the TT for the first time this month in a new, even more focused version of the iconic sports car debuting at the North American International Auto Show.

Destined for the UK in mid-2008 in both coupe and roadster body styles, the TTS earns its esteemed badge through the adoption of a specially developed, 272PS Turbo FSI petrol engine complemented by state-of-the-art chassis technology.

Extensive revisions to the acclaimed 2.0 litre turbocharged and directly fuel injected petrol engine that already powers the TT have boosted power from 200PS to 272PS and its torque from 280Nm to 350Nm, available between 2,500 and 5,000rpm.

Linked to six-speed, close ratio manual transmission the enhanced unit slingshots the TTS coupe from rest to 62mph in just 5.2 seconds, and is only curtailed by its electronic limiter at 155mph.

With the optional S tronic dual-clutch automatic transmission, acceleration times are reduced by a further two-tenths of a second in both the coupe and roadster.

In addition to the evocative S' insignia, the most extreme production TT to date highlights its capabilities from the front through newly designed bi-xenon headlamps incorporating trademark Audi LED strip daytime running lights, a redesigned front apron incorporating larger air intakes and aluminium-look door mirror housings.

The profile view is enhanced by deeper side skirts and exclusive 18in alloy wheels, while a revised rear bumper with four tailpipes protruding from its extended diffuser conveys the newcomer's extra performance potential.

Inside, deep-set Alcantara and leather combination sports seats, exclusive S instruments with white needles, metal pedals and special aluminium trim elements enhance the sports interior.