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2013 Porsche 911 RSR makes official debut

Porsche is ready to go racing in 2013, showing off a new 911 RSR today that is scheduled to compete in several endurance events this year. Based on the current 991 911, the new RSR will compete in the 2013 season of the World Endurance Championship and the 24 Hours of Le Mans. It will not, however, make an appearance in a North American racing series this year.
The 2013 version of the racecar has increased in wheelbase by some four inches, features a new wishbone front suspension in place of the last-generation's McPherson strut setup and boasts a new, lightweight six-speed racing gearbox. The engine, meanwhile, is an "optimized" version of last year's car, a 460-horsepower 4.0-liter boxer six-cylinder. Extensive use of carbon fiber and polycarbonate windows help the RSR shed weight, and Porsche has also balanced the weight more evenly with a lower center of gravity.
Porsche has thoughtfully dedicated some space to celebrate the 911's 50th Anniversary, with the number 50 clearly visible in the top-down view of the RSR, as well as along the doors. Scroll down to read the full Porsche press release, below.

Porsche Panamera gets new diesel in time for Frankfurt

Diesel may not be the first thing that comes to mind when you think of Porsche, but in the European market - that vital one which Porsche calls home - diesels are indispensable. Particularly when you're trying to extend beyond niche sports cars and into the mainstream luxury sedan market as Zuffenhausen has with the Panamera. In fact, diesels account for 15 percent of Panamera sales worldwide (even though they're not offered Stateside), so to keep oil-burning customers happy, Porsche has announced a series of upgrades.
Set to be unveiled in the flesh at the fast-approaching Frankfurt Motor Show, the new Panamera Diesel packs 300 horsepower. That's 50 hp (or 20 percent) more than the model it replaces, significantly dropping the 0-62 sprint from 6.8 seconds to 6 flat, and raising top speed from 152 miles per Autobahn-crunching hour to 161. While they were at it, Porsche's engineers also fitted the rear differential with torque vectoring (previously reserved for gasoline-burning models) and retuned the transmission and suspension.
You can delve into the press release below for all the details - including the new model's improved towing capacity! - but the reality, for better or worse, is that the Panamera Diesel isn't offered here. So if you've been celebrating Labor Day (or even Labour Day, for our friends to the north) like we have, don't go looking for it at your local dealer, who will have only a Cayenne Diesel to show you instead.

Modded budget Mazda Miata takes on new Porsche Boxster in more challenges

Earlier this month, our friends across the pond at Auto Express released the first in a two-video series that would see them try and build up a second-generation Mazda MX-5 Miata that could best a standard Porsche Boxster around the track. While that first video detailed the mods to the MX-5 - a supercharger, some suspension upgrades and a new set of super-sticky rubber being chief among them - and set baseline lap times for the stock car, today, we have the results of the 5,000-pound ($8,200) upgrade job.
Of course, we aren't going to spoil those for you. You'll need to watch the full video, which recaps the upgrades before digging into a comparison of both straight-line-speed differences between the 2.7-liter Porsche Boxster and blown Miata, as well as their behavior and lap times on the track.
Take a look and let us know what you think in Comments.