THIS is too fast.

Watching this Porsche 918 Spyder hybrid do 350kmh on an unrestricted stretch of highway north of Alice Springs will make your stomach turn.

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This is not the polished asphalt of the European autobahn. This is a country motorway.

The man behind the wheel is not your average driver, but a trained professional.

The hybrid supercar, which retails for more than $800,000, runs on two electric engines, alongside a 4.6L V8 petrol engine.

In all, we're talking 652kw.

The stretch of the Northern Territory's Stuart Highway lost its speed limit in early 2014, as part of a trial.

The 200km expanse lies between Alice Springs and Barrow Creek.

For those craving speed, it is a god-send.

For those wary of how many die on Australian roads each year -- 1141 were killed on Australian roads in past 12 months -- it is a scary premise.

For Porsche, it's a marketing opportunity.
 

The Porsche 918 Spyder
The Porsche 918 Spyder

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