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Jack Olsen built a Porsche 911 to drive every day and conquer Willow Springs

Almost two years ago we wrote about the 12-Gauge Garage Jack Olsen built to house his multifarious Porsche 911 - its 1972 bodywork hides four decades of Porsche parts, like the transaxle from a 1977 911 and the engine from 1995 911, for example. It weighs 2,400 pounds and has 272 horsepower, and Olsen uses it daily driving and for track days, the latter excursions featuring homemade, bolt-on aero parts. German magazine Auto Bild stopped by Olsen's house to look in on the Porsche called "Black Beauty II," and we get a few more details about the mods he's made, like swapping out for fiberglass body panels and welding Fuchs wheel centers to wider Corvette barrels so he could run different tires. Most importantly, though, Olsen divulges his passion for lowering his lap time at Willow Springs. Randy Pobst set the lap record for a production car around the 2.5-mile Big Willow track in a Porsche 918 Spyder at 1:23.54 during a Motor Trend test (the outright record, according to Willow Springs, is held by Michael Andretti at 1:06.050 in a CART car). Further down the list, Steve Millen drove a 415-hp 911 GT3 RS around the same track in 1:33.14 - a car 600 pounds heavier than Olsen's. Over the past 14 years of tinkering with his car, Olsen says his data shows his lap time is now down to 1:26.88, achieved on the day of filming the Auto Bild video. That time would put him in between the 1:26 flat posted by Dominik Farnbacher in a 608-hp Dodge Viper SRT-10 ACR and the 1:28.93 put up by Pobst in a 400-hp, 991-series 911. You can hear Olsen tell it in his own words in the video.

1973 Porsche 911 Carrera RS takes center stage with Petrolicious

Today, one of the most exciting track toys available is the Porsche 911 GT3. Its forbearer, though, was an altogether different beast that was every bit as exciting. Yes, we're talking about the old 911 Carrera RS that blessed the early 1970s. With a mere 1,580 cars built, meant specifically to satisfy the FIA's homologation requirements, the RS is one rare pre-Malaise era cars.
Complete with a 2.7-liter flat-six engine, this RS of Mark Haddawy is one of the earlier examples of the breed (later cars received a larger, 3.0-liter engine). Still, it can scamper to 60 miles per hour in a very respectable 5.6 seconds and will happily hit 150 mph in a straight line. Sporting Porsche's iconic duckbill rear spoiler, the equally iconic Fuchs wheels, as well as slew of options, as Haddawy points out, each of the nearly 1,600 RS models is its own unique iteration on the Porsche performance formula.
Take a look below for the latest video from the crew at Petrolicious.

Porsche Cayman GT4 speeds back into view

We're all familiar with the succession of numbers that follow the letters GT on a hard-core Porsche 911: the GT1 that was Stuttgart's Le Mans contender in the late 90s, the GT2 that packs turbochargers but without the Turbo's all-wheel drive and excess weight, and the naturally aspirated GT3 that's the enthusiast's choice. But a GT4? That's something new, and exactly what Porsche has in store.
Spied testing in Germany once again is the upcoming GT4 version of the Porsche Cayman, set to supersede the existing GTS and take the place of the previous Cayman R at the top of Porsche's junior sports car range. This latest batch of spy shots doesn't show us much more than the last crop, but gives us a much clearer view at what promises to be the most hardcore Cayman to date.
As you can see, the Cayman GT4 packs a much more aggressive aero kit and rolling stock than any version we've seen to date. It's got a lip spoiler, big air dam and GT3-style vent in front of the hood, deep air scoops along the flanks, a set of spindly alloys packing oversized brakes, a diffuser with twin central exhaust tips around back and a rear wing that's likely to be replaced with a sleeker unit before the GT4 reaches production.