It’s just another day at the mother of all highways, the German Autobahn – which of course means cars reaching top speeds that in any other country around the world would probably get your buttocks thrown in jail and your car confiscated.

But not on the Autobahn where a member of the GTBoard forums took a G-Power BMW M5 Hurricane RR up to a top speed of 357km/h or 222mph.

As a refresher, when G-Power introduced the BMW M5 E60-based Hurricane RR a couple years back, it claimed at the time that it was the fastest saloon in the world – we don’t know if it still holds the crown today.

In any case, among other improvements, G-Power’s Hurricane RR package adds an SK III bi-supercharger system with a custom water-cooled inter-cooler lifting the 5.0-liter V10’s output to 750-horsepower.

Story References: GTBoard via Autoblog.nl

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