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G-Power has taken their BMW M5 and has officially made it the world’s fastest sedan clocking in at 372 km/h or 231 mph. Dubbed the Hurricane RR, G-Power has beaten its own previous record of 367.4 km/h or 228 mph. The M5 is able to achieve this top speed through its twin-supercharged V10 engine that puts down 800-hp and 590 ft-lbs of torque.

G-Power informs that the ASA T1-316 superchargers used in the setup could theoretically output over 900-hp. The V10 has obviously been rebuilt, using Mahle pistons and custom rods. The ECU was remapped and tuned to ensure its highest horsepower output is in the M5’s 7500-8000 rpm range.

The record run was achieved on 19-inch G-Power forged wheels wrapped with Michelin Pilot Spot tires. The Hurricane RR as you see it in all its record-setting glory can be ordered from G-Power for a measly $320,000 . But if you’ve already got an M5 or M6 sitting around, G-Power’s twin supercharger setup starts at around $71,415.

GALLERY: G-Power BMW M5 Hurricane World’s Fastest Sedan

Official press release after the break.

SpeedFactory is all about performance out of Chrysler-brand automobiles. They take the stock and mundane, albeit powerful foundations, and convert them to customized and thrilling driving adventures. A brief drive-by on their website reveals a fine collection of Dodge Challengers, Dodge Chargers, Dodge Magnums, Chrysler 300s, Ram trucks and Jeep Grand Cherokees available for sale, fully modified with several stages to choose from.

With the Dodge Challenger being the affordable, hot performance vehicle from Dodge’s line it’s no surprise that SpeedFactory offers a plethora of upgrade choices to the vehicle. From naturally aspirated to supercharged packages, horsepower can range anywhere from 475-hp to 700+ depending on your budget and desires.

Their most recent creation is the 6-speed, SF600R Dodge Challenger that’s priced for at $73,900. For a car with an MSRP that starts at $23,460, that’s quite the increase. So what do you get with a hefty chunk of change from SpeedFactory? Well for starters, you’ll be behind the wheel of a stroked 7.0L Hemi block that pushes out a guaranteed, dyno-proven 595- to 605-hp. The motor is completely reworked from bottom up along with bolt-ons in the form of an air intake and Corsa stainless steel exhaust.

Other modifications include a Centerforce clutch and a Getrag IRS to get the power to the ground safely and reliably. Performance springs and sway bars help balance the handling while front and rear strut tower braces tightening up the chassis. Last but not least, the Challenger receives some stylish points with a set of 20-inch BBS Black Edition CH-R wheels wrapped with Michelin Pilot Sport PS2 tires.

While the horsepower figures are incredibly impressive, offering plenty of power in a properly-built motor, we have to think that you can get the same set of modifications, engine build and more for the difference in the price. But hey, those with hefty wallets that don’t have to think twice – SpeedFactory is your choice.

The official press release is available after the break.

GALLERY: SpeedFactory Dodge Challenger SF600R

The Acura TSX has grown considerably over the years, so much so in fact that Acura has decided that for top level performance the car has outgrown its four-cylinder powerplant. So to add some beef to the already impressive sports-sedan, Acura has stuffed a 280hp 3.5-liter V6 engine under the hood for the 2010 model year.