2004 Porsche Cayenne 4dr S on 2040-cars

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Xcar considers the Porsche 911 GT3's PDK

Porsche ruffled some feathers when it unveiled the latest 911 GT3 a couple of years ago with a dual-clutch transmission instead of an old-school manual. The rationale was (and remains) that the PDK makes the enthusiast's Elfen faster than it would be with a stick. The purists scoffed, but Zuffenhausen held firm – and even did the same with the even more hardcore GT3 RS. In its latest video, the boys at Xcar set out to find out if the GT3 with its fancy automated gearbox is as good as the previous model (or as good as the current model could be) with a manual – and took in some of the track toy's other trickery while they were at it. Check out the video above to find out what conclusion they reached.

Mercedes-AMG GT S pit against Porsche 911 Turbo in Evo Deadly Rivals test

When Mercedes-Benz announced that its all-new AMG GT would start at $129,900 deeply undercutting the $200,000-plus of its predecessor, the SLS AMG, immediate questions focused on how it'd stack up against the latest crop of high performers that occupy the mid-$100,000 range. Evo, over in the UK, didn't have to wait all that long. The latest installment in the outlet's "Deadly Rivals" series compares the AMG GT with the latest Porsche 911 Turbo. On paper, the test is sure to be interesting. The Mercedes uses a 4.0-liter, twin-turbocharged V8 with 503 horsepower and 479 pound-feet of torque, while a seven-speed AMG Speedshift dual-clutch shuffles power to the back axle. The 911 Turbo's formula is more of a known quantity – 520 hp from a twin-turbo, 3.8-liter flat six with the company's own PDK working in unison with all-wheel drive, torque vectoring and rear-axle steering. Of course, we're not going to spoil the results for you. Take a look at the video up top, and let us know what you think of Evo's latest track battle.

A 1985 Ford Escort for $915,000? If it was owned by Princess Diana

What makes a used car worth more than the car itself? If it was owned by John Lennon. Or Muhammad Ali. Michael Schumacher, perhaps, or Stirling Moss. This year’s edition from the Hagerty organization of its “Power List” makes for amusing reading even if youÂ’re not on it. But you can make believe that you are. Essentially, the list, which was launched only last year, tracks the impact of celebrity ownership of a vehicle on its value, as measured by its worth at auction. Nearly 400 sales of celebrity cars and bikes have been analyzed from around the world by Hagerty using market data and “expert” analytics. Hagerty is aware, certainly, that famous folks — from royalty, sports, movies and music — grab gobs of attention from ordinary people. ThatÂ’s why the 2023 Power List comprises these categories: Art Cars, Racing Drivers, Movies and TV, Musicians, Royalty, Screen Stars, Sporting Icons. But you don't have to be a rock star or a F1 pilot to get listed: Princess Diana, besides an Escort Turbo RS that she owned between 1985 and 1988, numbered a convertible 1994 Audi 80 Cabriolet and a Jaguar XJS Cabriolet among her rides. HereÂ’s a look at some of the more notable entries: Racing driver category: In pole position was an unlikely titleholder, a 1976 Ford Bronco. This was the car bought new by legendary Canadian Formula 1 driver Gilles Villeneuve and untouched since his death; it sold at the Aguttes auction in Paris last December for $148,000, a huge 210% increase over the $47,800 that Hagerty would value a regular example in the same condition. Just a note: The list doesnÂ’t include race cars, only vehicles kept privately by the drivers. Musicians: A 1974 Rolls-Royce Silver Shadow had been Freddie MercuryÂ’s personal chauffeur-driven transport from 1979 until his death in 1991. Without celebrity ownership, Hagerty would value the Silver Shadow at a lowly $9,500, a car that would take a lot of time, effort and money to restore properly. But add in MercuryÂ’s aura and bids ended at $362,500. “ItÂ’s no surprise that MercuryÂ’s car dominated our Musicians list on the 2023 Hagerty Power List,” the company said. Movies and TV: For those readers now emerging from hibernation since 1968, the news is that the historic Highland Green Mustang from “Bullitt” remains at the top of the Power List for the second year running.