Nissan GT-S Concept

The principal changes made to turn the 350Z into the GT-S centre on its engine and chassis. Using a supercharger installation from Swiss manufacturers Novidem, power has increased by more than 25 per cent from 300PS to 382PS, while torque rises from 353 Nm to a heady 425Nm.

Performance gains are expected to include a one second cut in the benchmark 0-60mph time (5.8 seconds for the standard 350Z) with 2.5 seconds slashed from the 0-100mph time.

And it sounds better, too, thanks to an electronically controlled by-pass valve that enriches the exhaust note at a pre-determined engine speed.

NTCE engineers – the very men who tuned the original 350Z to suit European roads and their higher speeds – have undertaken the suspension changes. Working closely with specialists from Bilstein, the changes concentrate on optimising road performance, with improvements in both handling ability and ride comfort… particularly on British ‘B’ roads. Wider wheels and tyres complete the chassis alterations.

A wind tunnel developed body/aero kit from German firm Strosek not only gives the all-black GT-S a distinctive look, but also improves the 350Z’s aerodynamic performance with increased front and rear downforce at speed. The package is completed by a NVH pack which makes the GT-S even more civilised than the standard 350Z.

Steve Robbins said: "We could have produced a balls-out racer with huge power outputs and very little suspension movement. But while this would have created a superb racer, it would have been virtually unusable on the road. Instead we approached the GT-S from an engineering stand-point with a view to creating a 350Z that provides more of everything… performance, handling, looks, comfort and excitement.

"We also looked at the possible marketing potential of such a project and have designed the improvements as individual ‘packs’ – an engine pack, a suspension pack, aero pack and so on – and kept a close eye on costs."

So will the GT-S ultimately become more than a weekend project by a group of mavericks? Nissan is saying nothing officially, though insiders point to its appearance at Goodwood as a sign the company is giving the GT-S concept serious consideration.