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 |   |  G-Power BMW M5 Hurricane RR - Storm Warning
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G-Power BMW M5 Hurricane RR - Storm Warning

G-Power M5 Hurricane goes like a gale-force wind

Nick Hall
Apr 22, 2011
Photographer: Steve Hall

Some tuner cars scream from the hilltops just how fast, ragged and rampant they could become with a simple flex of the right foot. Even if it isn’t true. You’ve seen them outside McDonald’s on a Saturday night, all wing, bluster and grenade launcher exhaustwith the power of an asthmatic ride-on lawnmower.

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The G-Power M5 Hurricane RR is not one of those cars. It doesn’t need to shout about anything. Apart from the carbon wrap, the minor body kit and the 20-inch wheels it looks like any other M5, special in its own way but hardly in the giant-killing leagues.

2019 BMW M5
$102,700 Base Model (MSRP) MPG Fuel Economy

But the truth is that this is the fastest four-door sedan in the world, good for 231 mph. That was enough to secure the production car speed record for the McLaren F1 for more than a decade until the Bugatti Veyron came along, so it’s fair to say this car can still blow most supercars off the road at the top end.

It might look like a mild-mannered Clark Kent, but Superman is on call with a twitch of the right big toe. Because this car comes with two superchargers, 800 hp and 590 lb-ft of torque, and those limits are defined by the strength of the SMG transmission rather than the work under the hood.

That work, incidentally, is a thing of wonder. The luminous aluminum orange airbox sits proudly in the center with the superchargers braced to it on each side. Visually speaking, it’s the loudest part of the car, but unless you’re showing it off to a fellow petrolhead nobody will ever know.

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G-Power’s mechanical side was born from a marriage with ASA, which supplies forced induction to the likes of Alpina. Its twin T1-316 superchargers combine with an uprated cooling system, forged Mahle pistons and new H-beam connecting rods and piston pins. All the crankshaft needs is a thorough inspection to ensure it’s one of BMW’s best.

The other internals are more than capable and G-Power confidently slaps a two-year warranty on this extreme road warrior. In fact, they could theoretically squeeze 900 hp out of the system that comes with superchargers spooling up to 100,000 rpm and the massive amounts of gas coursing through the bright-orange airbox, but 800 hp is, unbelievably, erring on the side of caution.

For our test, Michelin had the idea to gather at the Nrburgring to show the true potential of its Pilot Sport 2 tire before introducing the much-improved PS3. The French company paid the insurance, issued the invite and sent us out onto the world’s most challenging racetrack in a $300,000, four-door rocket. Brave would be one way to put it. Borderline insane would be another.

An instructor up ahead means I can’t fully tap the performance. Instead we drop back, plant the throttle and then dive on the brakes again. And thankfully those aren’t stock, they’re Brembo 15-inch rotors all around with six-piston calipers on the front and four-piston calipers on the rear. That’s the setup normally found on a Porsche Cayenne Turbo, and good enough to stand the car on its nose and test the traction of the Pilot Sport 2s at both ends of the scale.

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It’s fair to say this car is hard on tires, as the estimated 0-60 mph time of 4.35 seconds has nothing, absolutely nothing, to do with the power. It’s all about getting it down and this car just can’t. It chirrups the tires all the way into Fourth gear and it’s only as the car gains momentum and speed that the crushing firepower under the hood makes itself felt.

When it gets into its stride, though, it’s an awe-inspiring thing, hitting 125 mph in 9.5 seconds and 185 mph in 25.8 seconds. It won’t worry a Veyron, but it would leave a very perplexed LP670-4 driver eating its dust. It doesn’t hit any kind of aero wall on the Ring either, and keeps pulling down the main straight until we run out of road. Incidentally, with the new record as the world’s fastest sedan G-Power only beat itself, the company’s 750-hp M5 variant held the crown till this one came along on specially developed rubber that could take the weight and top end speed.

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And though the torque curve remains intact, it’s been bumped up so high that there’s no need to really work the revs any more. You can, and the true ballistic power still comes at that 8000-rpm watershed, but there’s acceleration to spare in higher gears too. G-Power’s Zoran Zorneke proves the point by taking the whole Ring in Third and Fourth gear for one lap; the car is never found wanting.

As for the corners; well, the fully adjustable suspension helps the already impressive M5 scythe into bends and then it’s all down to the driver. Of course you can leave all the BMW driving aids on and in daily life that would be a life-saving decision, but there’s no point owning a car like this to leave everything to the nanny state.

Switch them off and you better know what you’re doing as that much force through the rear can spike the car sideways in a heartbeat. I’m not ashamed to say I partially bitch out and partially listen to G-Power’s concerned words; the Nrburgring is just too tight, too unforgiving and too serious to take that kind of liberty.

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And even with the gadgets switched on, the car pulls at the leash in the bends enough to suggest that even the computers won’t save you from crass stupidity. You could use this car every day, you really could, but you’d be tickling the throttle in the real world and barely touching that tidal wave of performance underfoot.

Which begs the question, why? Well, there’s no doubt it’s a niche product and it won’t be the first $300,000 car in the garage. But for the super rich there’s a perverse appeal in taking what looks like a standard sedan down to the traffic light Grand Prix and blowing the doors off a Lamborghini or Ferrari.

They will have Superman, without the ridiculous pants over tights costume, and they will have the fastest four-door on Earth. But with the infinitely tunable twin-turbo M5 on the way, don’t bet against G-Power smashing its own record again before too long.

G-Power M5 Hurricane RR

Longitudinal front engine, rear-wheel drive

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5.0-liter V10, dohc 40-valve, Mahle pistons, G-Power connecting rods and piston pins, twin ASA T1-316 superchargers, G-Power air intake, 100-cell catalytic converters, 105mm exhaust pipes.

Seven-speed SMG auto manual

Nine-way adjustable KW coilovers

Six-piston Brembo calipers, 15-inch rotors (f), four-piston calipers (r)

Wheels and Tires
Silverstone Clubsport alloys,
9.5x20 (f), 11x20 (r)
Michelin Pilot Sport PS2, 245/35 (f), 285/30 (r)

Peak Power: 800 hp @ 7500 rpm
Peak Torque: 590 lb-ft @ 5000 rpm
0-60 mph: 4.35 sec. (G-Power est.)
Top Speed: 231 mph

By Nick Hall
32 Articles



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