New Porsche 918 RSR

Well Porsche is back in the top class of Prototype racing!

From the sublime to the ridiculous...

From the GM Cadillac Media blog - Cadillac announced today it will return to racing in 2011 with a race-prepared version of its CTS-V Coupe competing in the Sports Car Club of America World Challenge, North America’s top production-based racecar series.

The move returns Cadillac to a series where it competed previously, from 2004 to 2007. Competing in the GT Class with the CTS-V Sport Sedan, Cadillac captured the Manufacturer’s Championship in 2005 and 2007 and the Driver’s Championship in 2005.

Cadillac will field two teams in the upcoming SCCA World Challenge GT Class with a racecar based on the CTS-V Coupe. The CTS-V line, which also includes the CTS-V Sedan and CTS-V Wagon, was recently named to Car and Driver magazine’s 10 Best list for 2011.

“Returning to racing in the SCCA World Challenge is a great way to demonstrate the performance and capability of the CTS-V Coupe,” said Don Butler, vice president for Cadillac marketing. “The racecars in this series are production based, which allows us to validate our performance against the best of our competitors on the track, and not just the showroom.”

Cadillac is working with Pratt & Miller, a New Hudson, Michigan, engineering firm which specializes in motorsports, to develop the CTS-V Coupe racecar. While some of the production CTS-V components will be modified due to the unique demands of racing or to meet the SCCA series’ technical rules, every effort is taken to maintain as much production content as possible.

“The SCCA World Challenge lends itself well to a natural transfer of knowledge,” said Jim Campbell, GM vice president for performance vehicles and motorsports. “The series will become a key test-bed for Cadillac. We anticipate using what we learn on the racetrack to ensure V-Series stays on the cutting-edge of performance.”

The first event in the SCCA World Challenge is set for March 25-27 in St. Petersburg, Florida. Johnny O’Connell (inset photo), a three-time champion of the America Le Mans GT1 series, and Andy Pilgrim, who won the 2005 SCCA World Challenge GT class in a Cadillac, will be behind the wheel of the CTS-V racecars.

Introduced for the 2003 model year, the CTS-V has quickly earned a reputation among luxury sports car buyers. For the 2011 model year, Cadillac added the CTS-V Coupe and the CTS-V Sport Wagon to the CTS-V Sport Sedan, creating an impressive family of performance vehicles. The CTS-Vs feature Brembo brakes, a supercharged 6.2L V8 delivering 556 horsepower and a Magnetic Ride Control suspension system that can read and react to the road 1,000 times a second.

Started in 1944, the SCCA organizes and supports racing at all levels from amateur to professional. The World Challenge series is designed to provide teams, manufacturers and aftermarket suppliers a competitive production-based race series in which to prove their products. The races follow a 50-minute maximum time limit, with the number of laps and total distance determined by track configuration, lap times and race conditions.

And now for something completely different... (boy is this an understatement) I give you the first Nissan "Leaf" owner.

Read more at this link to Speed's report of this rollout event for the Leaf.

Porsche 911 Hybrid

Exactly 110 years after Ferdinand Porsche developed the world’s first car with hybrid drive, the Lohner Porsche Semper Vivus, Dr. Ing. h.c. F. Porsche AG, Stuttgart, is once again taking up this visionary drive concept in production-based GT racing: During the Geneva Motor Show, a Porsche 911 GT3 R with innovative hybrid drive is making its debut, opening up a new chapter in the history of Porsche with more than 20,000 wins in 45 years scored by the extremely successful Porsche 911 in racing trim.

The innovative hybrid technology featured in the car has been developed especially for racing, standing out significantly in its configuration and components from conventional hybrid systems. In this case, electrical front axle drive with two electric motors developing 60 kW each supplements the 480-bhp four-litre flat-six at the rear of the 911 GT3 R Hybrid. A further significant point is that instead of the usual batteries in a hybrid road car, an electrical flywheel power generator fitted in the interior next to the driver delivers energy to the electric motors.

The flywheel generator itself is an electric motor with its rotor spinning at speeds of up to 40,000 rpm, storing energy mechanically as rotation energy. The flywheel generator is charged whenever the driver applies the brakes, with the two electric motors reversing their function on the front axle and acting themselves as generators. Then, whenever necessary, that is when accelerating out of a bend or when overtaking, the driver is able to call up extra energy from the charged flywheel generator, the flywheel being slowed down electromagnetically in the generator mode and thus supplying up to 120 kW to the two electric motors at the front from its kinetic energy. This additional power is available to the driver after each charge process for approximately 6 - 8 seconds.

Energy formerly converted – and thus wasted – into heat upon every application of the brakes, is now highly efficiently converted into additional drive power.

Depending on racing conditions, hybrid drive is used in this case not only for extra power, but also to save fuel. This again increases the efficiency and, accordingly, the performance of the 911 GT3 R Hybrid, for example by reducing the weight of the tank or making pitstops less frequent.

After its debut in Geneva the 911 GT3 R Hybrid will be tested in long-distance races on the Nürburgring. The highlight of this test programme will be the 24 Hours on the Nordschleife of Nürburgring on May 15th and 16th. The focus is not on the 911 GT3 R Hybrid winning the race, but rather serving as a spearhead in technology and a “racing laboratory” providing know-how on the subsequent use of hybrid technology in road-going sports cars.

The 911 GT3 R Hybrid is a perfect example of the Porsche Intelligent Performance philosophy, a principle to be found in every Porsche: More power on less fuel, more efficiency and lower CO2 emissions – on the track and on the road.