The battle continues between German tuning heavyweights Brabus and G-Power to produce the world’s fastest “street-legal” sedan. G-Power drew first blood when it revealed its 225-mph Hurricane M5 based on the BMW M5. Brabus then answered when it released the Rocket, based on the Mercedes CLS, with a twin turbo V12 that maxed out at 227-mph. Now G-Power has unveiled its new Hurricane M5 ‘RS’ and reclaimed the title for world’s fastest “street-legal” sedan. The new Hurricane RS is powered by a 750hp engine that posted a 228 mph speed at its test track. The car gained an additional 20 horses of power by increasing the boost levels on the turbochargers. Now we wait and see what Brabus comes back with next to reclaim the record. The clock’s ticking…