The new Audi TT and TTS Coupe models have been unveiled at the Geneva motor show.

The third generation TT is said to be lighter and more agile than its predecessor, with Audi engineers claiming a weight reduction of around 50kg.

The TT continues to make use of Audi’s Space Frame body construction technologies, but makes greater use of high-strength steel-alloys in key areas, with many of the body panels – such as bonnet, doors, and tailgate – also made from aluminium.

The exterior design, while unmistakably an Audi TT, uses more angular lines, most notably around the front grille and headlights.  It’s roughly the same size as the outgoing TT, but with a 37mm longer wheelbase that makes it appear to have much shorter overhangs.

The headlights are Xenon as standard, but with the option of full LED or Audi Matrix LED units.  The latter uses 12 individual LED units to create a beam pattern that can be ‘diverted’ around other road users.  When either of the LED headlight options are specified, the rear lights include dynamic indicators to match.

Audi says the interior has been designed around the principle of ‘less is more’.  The MMI screen that is normally found in the centre console has now been integrated into the instrument cluster, while the ventilation controls have been cleverly integrated into the air vents.

The chassis has been tweaked for the new model, and although it retains the familiar MacPherson front and four-link rear set-up, an improved version of Audi’s magnetic ride damper control system is fitted to the TTS as standard and as an option on the TT.

Three four-cylinder engines will be available initially, starting with a 2.0-litre TDI with 184PS and 380Nm of torque that should be capable of sprinting from 0-62mph in 7.2 seconds with a top speed of 146mph.  It’s set to be the most frugal of the bunch, recording 67.2mpg on the combined cycle while emitting just 110 g/km of CO2.  The downside is it’s front-wheel-drive and comes with a manual gearbox.

Two 2.0-litre TFSI turbocharged petrol units will be offered, with a 230PS version for the TT with 370Nm that accelerates from 0-62mph in 6.0 seconds in FWD manual form, or 5.3 seconds in dual-clutch S tronic and quattro 4WD guise.  Economy is expected around 41.5mpg with CO2 emissions of 159 g/km for the latter.

The TTS, however, features a 2.0 TFSI with 310PS and 380Nm of torque available from 1,800 – 5,500rpm, and can hit 62mph in 4.7 seconds.  Both 2.0-litre TFSI models are electronically limited to 155mph.

UK pricing has yet to be confirmed, but first deliveries are expected before the end of 2014.