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Jay Leno puts carbon fiber wheels to the test on a Porsche 911 GT3 RS

Jay Leno's Garage usually focuses on looking at cars new and old, speaking to their owners and then Jay taking a drive to see what he thinks. However, Leno throws his usual shtick to the curb this week to do a full product test of the carbon fiber wheels from a company called Carbon Revolution. If you're not interested in hearing about wheels for 18 minutes, don't worry. They get mounted on a Porsche and are tested back-to-back with stock wheels, and Leno takes the 911 for a track test, too.
While carbon-fiber wheels aren't exactly a new idea, Carbon Revolution's goal is to create a lightweight, one-piece product that can be mass produced. The company even claims that it already has a deal with an OEM automaker to offer them on a vehicle in a few years. The key to the technology is that it doesn't need an expensive autoclave to be made.
In the meantime, the company's carbon fiber wheels are available as an aftermarket option for about $15,000 a set, according to the video. They weigh in at about 15.5 pounds each and offer OEM-levels of stiffness, so they could cut some unsprung mass off of a performance car. Watch here as Jay and his mechanic Bernard lap Willow Springs and give their feedback about what they think of this cutting-edge technology.

2014 Porsche 911 Targa takes its crop-top off in Motor City

Back in 1965, Porsche invented the 911 Targa as a matter necessity. Believing that a finicky National Highway Traffic Safety Administration was prepared to outlaw convertibles, the innovative automaker created the half-open car as a way to keep wind rushing through owners' hair. Though far removed from those formative days, it seems as though the 2015 Porsche 911 Targa has come to the Detroit Auto Show with a new-school version of some old-school tech.
While the last Targa featured a trick sliding glass roof at the touch of the button, the new car dramatically swallows a traditional-looking panel via an exceptionally complex-looking mechanical operation. The net result is "the same fun factor and freedom" that can be had with a complete convertible, though with slightly more open-driving protection while underway.
And, as is the case with all of the current 911 range, getting underway can be done with reasonable rapidity. The entry-level Targa 4 rocks a 350-horsepower, 3.4-liter flat-six engine just behind the rear axle, making that car good for 175 miles per hour at the top end (with the seven-speed manual, 174 mph with PDK) and a 0-to-60 sprint of 4.6 seconds. The Targa 4S, meanwhile, offers 400 horsepower from 3.8-liters of boxer six, runs to 60 in 4.2 seconds and hits a top "track speed" of 183 mph.

Lexus leads J.D. Power's Vehicle Dependability Study for 2021

J.D. Power's latest Vehicle Dependability Study is out, and, not surprisingly, Lexus sits at the top for the ninth time in the last 10 years. Right behind Lexus is Porsche, followed by Kia, which is the highest-ranked mass-market brand in the study. Genesis, last year's top-ranked brand (in its first year included in the results), fell from first to eighth, though the G80 sedan did earn an award in its midsize luxury segment. The Porsche 911 was called out as the Most Dependable Model by J.D. Power for the second time in the last three years. The vehicles being studied are from the 2018 model year, which means owners have had three years to get to know their cars and trucks. It's notable that this year's study shows a marked improvement in overall vehicle dependability as tracked by J.D. Power. The overall level of problems, scored by the number of problems per 100 vehicles (PP100), declined by 10% compared to last year.  "The study results validate what we have known for some time," said Dave Sargent, vice president of global automotive at J.D. Power. "Automakers are making increasingly dependable vehicles — but there are still some problem areas that need to be addressed and some warning signs on the horizon." Tesla makes its inaugural appearance on the Dependability Study, though its score of 176 PP100 isn't official. Tesla is the only automaker that has chosen not to grant J.D. Power permission to survey its owners in all 50 states. As we've pointed out in the past, the Vehicle Dependability Study includes eight major vehicle categories grouped by J.D. Power as follows: audio/communication/entertainment/navigation (ACEN); engine/transmission; exterior; interior; features/controls/displays (FCD); driving experience; heating, ventilation and air conditioning; and seats. All issues reported by owners are all tracked equally, which means a problematic phone pairing procedure dings an automaker's rating the same as a blown engine or transmission. And in fact, the ACEN category has more reported problems than any other, which means the majority of problems reported don't lead to a vehicle that leaves its owner stranded. Green Land Rover Lexus Porsche Car Buying JD Power dependability reliability