2011 Porsche 911 C4s Cabriolet Pdk Full Leather $132,175 Msrp on 2040-cars

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Porsche 911 Aerodynamic prototype cheated the wind ahead of its time

You might think that sports cars would have the lowest drag coefficient of all cars. And yes, they do tend to be more slippery than, say, SUVs or convertibles, but the sleekest vehicles on the road tend to be EVs, hybrids and luxury sedans. Sports cars, on the other hand, have aerodynamically detrimental needs for downforce and additional engine cooling. Still, the Porsche 911 is better than most, and has only gotten more so over the years. Its relatively narrow track and compact form mean it has a smaller frontal area than some other sports cars, and the gradual sweeping back of its headlights and windshield have only augmented its capacity for cheating the wind.
This 911 prototype, however, is even more aerodynamic than most. It's based on a "G model" 911 from 1984, but employed such features as covered wheels, a new rear spoiler and a reprofiled front end to drop its drag coefficient from 0.40 to 0.27, making it as slippery as a modern sedan and better at cheating the wind than just about anything built up to that point, save for maybe the Tatra 77, Citroën SM or Tucker Torpedo.
Elements of this prototype ended up gradually making it into production Porsches for years to come, and you can clearly see early influences on the second-generation 964 and even on the 959. It's featured here as the latest installment in a video series on rare historic Porsches unearthed from the company archives, following previous clips that featured a rare V8-powered 911 and a mid-engined 911 prototype. Scope out the latest episode in the video below.

Porsche Cayman GT4 spotted at the N?rburgring

It was just the other day that we first caught wind of Porsche's plans to build a GT4 version of the Cayman, and now we're already looking at spy shots of the vehicle in question undergoing testing at - where else? - the Nürburgring.
With more aggressive front-end aero, a GT3-style air vent ahead of the front hood, a large wing at the back, and spindly alloys packed with over-sized brakes at each corner, this Cayman is clearly more extreme than even the range-topping GTS. The rear diffuser and central exhaust tips look about the same as those you'd find at the back of the Cayman GTS, though.
What we can't see, of course, is what Porsche has slotted in under the rear glass, how it's upgraded the interior and how much weight it's stripped out of the thing to get it down to fighting weight, but you can bet it'll come with a substantial power bump and a stripped-out interior with racing buckets and little else to open the gap between it and the GTS... and close the gap to the 911 GT3 which it will join as the baby brother in Porsche's performance-focused lineup. Click above to view the double-batch of spy shots.

Porsche testing new 911 GTS

Porsche may have one more vehicle in its stable with the GTS moniker, if these spy shots are any indication. They show off the presumed 911 GTS lapping the track - the model meant to slide in under the GT3 to be a bit more driver-friendly but still very fast alternative to a stock Carrera.
At first glance, it might look like any other 911, but the devil is in the details. The most obvious among the differences are two centrally mounted exhaust outlets, rather than the ones closer to the corners on most of the current models. They also aren't perfectly in the center like the GT3. The taillights are also somewhat thicker than the current ones, and the rear decklid is split into three exposed sections.
This is the third time we've seen the presumed GTS. The first was as a coupe late last year. Then it showed up again in March testing in convertible form. Although, that version also sported fender vents at the rear.