Showing posts with label Best seller cars. Show all posts
Showing posts with label Best seller cars. Show all posts

Nissan GT-R Nismo GT3

JR Motorsport announced their Nissan Nismo GT-R GT3 back in September 2011, but Nissan themselves have already gone to work on a GT-R GT3 Nismo that they plan to unveil at next week’s Dubai 24 Hours. The new car will compete in the A6 class at the hands of Michael Krumm (GER), Tom Kimber-Smith (UK), Franck Mailleux (FRA), and Alex Buncombe (UK).http://www.gtrinformation.com/wp-content/uploads/2012/01/Nissan-GT-R-GT3-1.jpg

The new GT-R GT3 Nismo is powered by a 3.8 liter V6 twin-turbo engine mated to a Hewland 6-speed sequential gearbox with a Sachs 4- plate sintered clutch and a semi automatic pneumatic paddle.

The GT3 Nismo has also been equipped with a new set of 18" RAYS center-lock, aluminum forged wheels and a new set of Brembo brakes. Nissan then replaced the standard exhaust system with a new side-exit exhaust with optional catalytic converter. The panels and doors are made of carbon composite and, for a better aerodynamic, Nissan has attached a wind tunnel developed front splitter, bumper, and flat floor, as well as an adjustable rear wing.





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UPDATE 01/23/12: Nismo and JR Motorsports (JRM) have released new details and a new image on the Nismo GT-R that will be used for GT3 racing worldwide. The model will use a 3.8 V6 twin-turbo engine based off the standard car, with the output increased to 530 HP at 6,400. If anyone interested, the starting price for this racer is 298,000 Euro, or about $388,000 at the current exchange rates.

Source : Topspeed.com

Mazda Gets Loopy With New Capacitor

Mazda has laid claim to developing the first capacitor-based regenerative braking system for a passenger vehicle, dubbed i-ELOOP - intelligent Energy Loop. The technology has shown up in racing cars before (see Toyota's Supra HV-R), but Mazda's project marks its first appearance in a regular passenger car.



The system works like a regular regenerative braking system, but the energy is stored in a capacitor rather than the more common battery arrangement.

 http://www.autowallpaperhd.com/wp-content/uploads/2011/10/Mazda-Takeri-Concept-2011-3.jpg


The i-ELOOP system is made up of a 12-24V variable voltage alternator, a low-resistance electric double-layer capacitor and a DC/DC converter.


Like most systems, i-ELOOP recovers kinetic energy as the vehicle is decelerating, which the alternator uses to generate electricity that is then sent to the capacitor.


The stored energy is used to power the vehicle's climate control, audio system and other electrical features. The system will also charge the vehicle's battery when necessary.





Mazda says the advantage to using a capacitor its ability to be charged and discharged rapidly, and, compared to batteries, a stronger resistance to deterioration.


The big win for the driver however is that because the system does not use a dedicated motor or battery to operate and is therefore using less power, the vehicle's fuel economy is improved by "approximately" 10 percent.

http://www.carsession.com/news/photos/Mazda/Mazda-TAKERI-Concept-Previews-next-gen-Mazda6-676805546.jpg


The system is designed to work alongside Mazda's i-stop idle-stop technology, allowing the engine to remain switched off for longer periods.


Mazda has yet to announce production plans for the technology, but expect i-ELOOP to appear in the next-generation Mazda6 or Mazda3.

Source : themotorreport.com.au

Maserati GranTurismo Convertible Sports






It was a peaceful and elegant scene, the bright sunlight glinting off the top-down Maserati GranTurismo convertibles parked on the Piazza dell'Unità d'Italia in Trieste. Passersby admired the gorgeous cars, one of Pininfarina’s masterpieces. Then a legion of uprated 4.7-liter V-8s ignited with a snarl, and peace and elegance were the last things on our mind.
About that wonderful engine, fitted in the top-spec GranTurismo Convertible Sport. Purists still lament the fact that Maseratis, which were long defined by powerplants that developed peak power at low rpm, are now equipped with high-revving buzzsaws bought from its former arch-rival, Ferrari. But the GranTurismo Convertible Sport's 444-hp variation of the 4.7-liter V-8 is sure to create a few converts.
It’s an evolution of the regular GranTurismo convertible’s 433-horse 4.7-liter with less internal friction thanks to a revised oil sump and slipperier coatings for the valve tappets and cam lobes; this upgraded version also powers the GranTurismo MC Stradale coupe. Compared to its lesser sibling, the droptop Sport exhales through a freer-flowing exhaust, the main purpose of which seems to be to create as much beautiful noise as is legally allowed. It’s aided in that pursuit by active valves that open at 2500 rpm when the transmission is in its Automatic Sport mode. We predict the V-8 will haul the 4600-pound droptop to 60 in 4.8 seconds.














Fantastico Automatico
As in the U.S.-market MC Stradale and the Quattroporte Sport GT S, power flows through a six-speed, torque-converter automatic supplied by ZF. But don’t lament the fact that there’s no hard-core gearbox; the automatic has been extensively reworked for duty here, and offers Normal and Manual Sport modes in addition to the aforementioned Automatic Sport, as well as launch control. Gearshift times are improved by up to 50 percent, it blips the throttle for downshifts, and, in Manual Sport mode, it doesn’t downshift when you hit the kickdown switch or upshift unless you tell it to. There’s more: You can call for a lower gear if there’s any leeway whatsoever before redline (most transmissions won’t let you downshift unless the resulting engine speed is farther down the tach from redline) and the exhaust flaps are always open in Manual Sport. This automatic is so good that you'll hardly miss a dual-clutch transmission—or the Euro-market MC’s single-clutch automated manual. Of course, you might miss a proper clutch-pedal manual gearbox, but Maserati doesn't offer one anymore.
Chassis Changes, Too
Underneath, the front and rear springs and anti-roll bars are stiffer on this derivative, the dampers are modified, and the ZF Sachs–sourced "Skyhook" damping system has been re-tuned. On twisting roads, the Sport handles well and generally does what you ask of it, but there’s simply no masking the car’s two-ton-plus weight or its somewhat uncommunicative steering. The body flexes more than it should, too. To be sure, the GranTurismo Convertible Sport is an enjoyable companion in nearly every situation, but it’s less full-bore sporty than its sinister looks and capital-S “Sport” badge might let on. So when a well-driven Audi R8 Spyder closes in on you from behind, our advice is to just let it pass. Take solace in the fact that the Audi will never sound as glorious as the Maserati, or seat four as comfortably (or at all).
There are a number of competitors: BMW's new 6-series droptop, the soon-to-be-new Mercedes-Benz SL, the Porsche 911 cabriolet, the Audi R8 Spyder, and, of course, the Jaguar XK and its distant cousin, the Aston Martin V-8 Vantage roadster. The Maserati acquits itself well by informal comparison: It’s more spacious than most (even if the trunk is tiny), it’s not outrageously expensive by the standards of the segment, it offers incredibly luxurious accommodations, and it just might have more character than the whole bunch combined. Those qualities ought to satisfy most anyone—trident purists included.





Source : Caranddriver.com