
If you believe the claims that Intense Automotive Design is making, then what you see here is the fastest production car… ever.
Based on a Mosler MT900 GTR XX, the twin-turbo monster, nicknamed the Land Shark, claims to be making 2,500hp at a red line of 10,000 rpm on its way to a top speed of 305 mph! (And apparently, with 118 octane racing fuel and IAD aerodynamic modifications, you can increase that speed to a freakishly fast 375+ mph. Apparently.)
To put that in perspective, by the time a quick car makes it to 60 mph (around 6.7 seconds) the IAD Mosler will already be going 150 mph, and 2.3 seconds later, it’ll have done a quarter mile at 178 mph in just 9.0 seconds. Plus, if you just want to see how fast you can get to 150, the IAD Mosler will go from a standing start to 150 mph and back to zero again in just 8.7 seconds.

To get there, modifications include a four fuel system, a custom all wheel drive system made of titanium and carbon fiber, and all-titanium suspension system, aerodynamic modifications including a front splitter and a fully adjustable rear wing, and carbon fiber wheels with magnesium centers that are attached to the car with titanium lug nuts.
Since the car will remain a mystery until actual numbers get checked and verified, we’ll just have to take IAD’s word for it, but they do plan to show off what it’s capable off during the 2009 Bonneville Speed Week, and then send it over to the Nurburgring for a few hot laps in the hands of Michael Schumacher, so I just hope it lives up to expectations.
[Via: World Car Fans]

The 911 GT3 RSR is what happens when Porsche puts no limits on the things it can do in the name of speed.
Designed to be a pure race car, and built to run in the American Le Mans Series, the Nurburgring 24 Hours, and the GT2 class at international long distance races, it’s based very loosely on the 911, though you won’t find many parts in the GT3 RSR that you could swap between it and the 911s you see prowling the golf course.

Seriously though, when changes from the previous GT3 RSR include “a lighter wiring harness to further improve handling” you know things have gone from intensive to excessive.

The 4.0-liter, six-cylinder boxer engine makes 450 hp at 7,800 rpm up to a redline of 9,000 rpm, and a new multi-funciton display located above the dashboard indicates the optimum moment to change gears, if you can’t already tell from the engine screaming at you 9,000 times per minute.
Want to talk tricks?

How about a programmable multi-function, onboard supply system control device, giving teams the choice of many individual functions, including an infinitely adjustable blinking frequency of the lights in the front apron, which helps to immediately recognize race cars when they enter the pits in the dark. For easier service under race conditions, the car even features an air-jack system with overpressure valve to life it in a pinch.
Only 20 of the new GT3 RSRs will be built, but at a price of $500,000, it shouldn’t be surprising why. Speed costs, and in the case of the GT3 RSR, you’re buying quite a bit of it.
[Porsche - 911 GT3 RSR]

The Pagani Zonda F is a special kind of sexy; with miles of carbon fiber covering the outside in a way that just screams speed.
The Nurburgring is an often public racetrack that is tucked away in the heart of Germany, and is used as a test track for some of the automotive elite.
Combine the two, and add in an HD camera co-pilot, and you have one of the best in car videos of all time. (Way better than the usual in car video, which looks like it was filmed with a cell phone.)
For reference, the Zonda recently set the record for the fastest lap of the ring, with a time of just 7:27.82 through the 12.9 mile loop, easily toping Porsche’s Carrera GT (the previous record holder) by almost 4 seconds.
Click through to live vicariously.
[SupercarMovies.com]