A TOUCH of style and some added oomph is on the way from Audi as the top selling premium car brand launches a classy combination of A5 and S5 coupes.

Based on the all-new A4 saloon the two door models will be arriving in November.

Prices are still to be confirmed but are likely to have a starting point of around £31,000 for the new A5 and in the low £40,000s for the high performance S5 - a car which has broken with Audi convention by ditching its normally aspirated V8 engine for a turbocharged V6.

As such the S5 becomes the standard bearer for Audi's new medium car line up and with a 0 to 60 acceleration of just 4.7 seconds it is putting down a marker against the likes of the BMW 440i M Sport and the Mercedes-AMG C43.

With a thrilling soundtrack from its quad exhaust system - which has been artificially enhanced for some added fun - the new S5 goes through its paces in a very accomplished fashion.

Audi delivers high end automotive engineering and the S5 with its quattro all-wheel-drive set up and eight speed automatic transmission is a sporty grand tourer out of the top drawer.

The new model is more than two inches longer than before but some 60kg lighter with a boot of 465 litres that makes it a coupe that's bigger than most saloons.

It's a strict four seater, tight for adults in the back but capacious for two up front.

Like the interior of the A4, the cockpit of the new coupe is very upmarket and the S5 comes with leather upholstery, plenty of S marque logos and a black headlining - sporty cues as is a flat-bottomed steering wheel and metal trim across the dash.

Audi's virtual cockpit where the instrument panel is a changeable digital screen, a head up display and a high definition display screen sitting proud of the dash are all part of its high-tech armoury and the pace setter can be fitted with a Bang & Olufsen hi-fi.

Smart kit on the S5 we tried included predictive sat nav where the car sets itself up, knows what's coming next and drives smoothly through bends.

There was also adaptive cruise control which can acquit itself in stop-start traffic as well as automatic emergency alerts should you get too close to the vehicle in front. Ignore it and the car brakes automatically.

It's all designed to put Audi's new coupes at the cutting edge of motoring technology and both A5 and S5 feature full connectivity for Internet access on the move.

In keeping with Audi's conservative image there is nothing ostentatious about the design and the new coupes are very pure when it comes to style with sleek lines set off by a slight power bulge in the bonnet, a prominent grille and a wavy body line flowing from tip to toe.

The S5 is set apart by more brightwork in the grille, a different front splitter and although it sits on a slightly lowered sports suspension there is nothing harsh about the ride and the handling is spot on.

The new V6 develops 354ps - that's 21ps more than the V8 did - packs 13 per cent more torque and has real punch when unleashed.

Not only is it quicker than its predecessor but it's also more fuel efficient with Audi claiming an official fuel return of 38.2mpg - although that proved a little optimistic on our drive where the best we could average was a little over 24 to the gallon.

Emissions are rated at 170g/km for the S5 and as low as 114g/km for the 2.0-litre diesel A5 with its claimed 68.9mpg fuel return.

The A5 is also available with a 2.0-litre turbo petrol engine developing a healthy 252ps which is rated at 47.9mpg with a CO2 figure of 136g/km.

Real world figures on our drives were 34 to the gallon for the TFSI petrol A5 and a respectable 48mpg from the diesel.

A 3.0-litre diesel automatic will also be part of the new A5 line up, although Audi has yet to homologate its performance figures.

As with the previous A5 and S5 - launched back in 2007 - the new models are very much about everyday motoring - coupes without compromise - and in the case of the S5 it's a car that is a very serious performance machine.