The G-Power Hurricane BMW M5 RS has rocketed to a claimed top speed of 228.3mph (367.4km/h)
Then Brabus came out with the Rocket, based on the Mercedes CLS but with a bored out, twin-turbo V12 that propelled the car to 227mph (365.7km/h) much to the consternation of G-Power. Then, late last year, G-Power reclaimed the title for the world's fastest street-legal sedan with the unveiling its new G-Power Hurricane M5 'RS'.
The RS takes power in G-Power’s standard Hurricane M5 from an already lofty 730hp to an even more insane 750 horses. With just a 20hp increase, the Hurricane RS was able to wrestle the title for fastest sedan back from Brabus, posting a top speed of 228.3mph (367.4km/h) at its test track.
The extra 20 horses were found by increasing the boost levels on the turbochargers, however according to G-Power there is further room to up the boost - something the company may have to do once Brabus unveils its next super-sedan in the hopes of reclaiming the record.