2008 Cadillac Dts L Sedan 4-door 4.6l on 2040-cars

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Cadillac is returning to endurance racing with a new prototype in 2017

In two months, Cadillac will return to top-tier endurance racing with its all-new Daytona Prototype International racecar after 14 years away. The car, which adheres to IMSA's new DPi regulations, looks as long, low, and Cadillac-like as anyone could have hoped. It's set to debut at the Rolex 24 at Daytona and will compete head to head with the likes of Mazda and Nissan in what is shaping up to be one of the most diverse and exciting forms of American motor racing in years. The new car will be run by Wayne Taylor Racing, the team that previously fielded the Corvette Daytona Prototype. Wayne Taylor himself has won the 24 Hours of Daytona twice, in 1996 and 2005. He now manages the team and leaves the driving duties to his two sons, Ricky and Jordan. They'll be joined in the cockpit by Max Angelelli, Wayne Taylor's teammate in 2002 at Cadillac's last unsuccessful attempt at endurance racing. To understand Cadillac's new car, officially called the DPi-V.R., you need to understand IMSA's DPi category. Basically, manufacturers are allowed to base their car on one of four chassis that follow the FIA LMP2 regulations. The chassis come from either Dallara, Onroak Automotive, ORECA or Riley/Multimatic. Cadillac will base their car on the Dallara platform. The DPi regulation differ from the LMP2 in two major ways: non-standardized engines and the ability to change certain parts of the bodywork. The DPi regulations are intended to give the variety of the top-tier LMP1 cars at a fraction of the cost. When it came to choosing an engine, Cadillac wanted to power the new car with something kinda sorta production based. The new car will use a naturally aspirated 6.2-liter pushrod V8 that shares some base architecture with the engine in the current CTS-V. While the power output hasn't been announced, expect about 600 horsepower. While that's down compared to the CTS-V, there is far less mass to move around as the Dallara chassis is a svelte 2,050 lbs. Since all the teams will be running different engine configurations, expect restrictors of some sort to help balance the power disparity. The parts of the body work that can be modified - The nose, sidepods, rear wheel arches and rear valance - have all been designed to mimic Cadillac roadcar design elements. Even the wheels look like they were pulled straight from the CTS-V. The front splitter, the floor, and the diffuser are common elements shared with other DPi cars.

Ford Mustang Shelby GT350R named Road & Track Performance Car of the Year

With a 526-horsepower, 5.2-liter V8 that roars to 8,250 rpm, it's really hard to consider the 2016 Ford Shelby Mustang GT350R an underdog in any fight. However, the Shelby held the lowest as-tested price and was only middle of the pack in terms of power in Road & Track's 2016 Performance Car of the Year challenge. The 'Stang's numbers clearly didn't tell the whole story about the potent coupe because Ford's muscle car grabbed the title in this year's test. A model needs to be new or significantly updated to be eligible for the honor, and R&T found an impressive slate of eight candidates this year. The challengers included the Bentley Continental GT3-R, Cadillac ATS-V Coupe, Chevrolet Corvette Z06, Dodge Viper ACR, Mercedes-AMG GT S, and Porsche Cayman GT4. The Ferrari 488 GTB was the most expensive of the bunch with an as-tested price of $347,942, which is five times more than the Shelby. Once the group was together, R&T hustled them over curving roads and on the National Corvette Museum Motorsports Park. There was a lot to love about the Shelby, even in this impressive crew. "With a flat-plane crank and Sport Cup 2 tires, the GT350R is a Mustang turned up to 11," editor-in-chief Larry Webster said in the announcement of the results. The GT350R joins some great company. Past winners include the Porsche 911 GT3 last year and the Corvette in 2013. For some fantastic photography and the complete appraisal of these performance machines check out R&T's website for the full story. Related Video: ROAD & TRACK NAMES THE FORD MUSTANG SHELBY GT350R THE 2016 PERFORMANCE CAR OF THE YEAR New York, NY (November 9, 2015) – Road & Track today named the Ford Mustang Shelby GT350R the 2016 Performance Car of the Year, beating out seven of the world's best new sports cars. The article appears in the December/January issue, on newsstands November 17, and on RoadandTrack.com. "With a flat-plane crank and Sport Cup 2 tires, the GT350R is a Mustang turned up to 11," said Larry Webster, editor-in-chief of Road & Track. "Not only does the car have soul and harness so much firepower with such ease, but the real achievement here is that it's so approachable. It's a car you can't help but love." The Mustang Shelby GT350R was the winner by a runaway vote.

Fullsize GM SUVs have a problem that's making owners sick

Some fullsize SUV owners are getting sick, thanks to a buffeting and vibration problem in 2015 model year examples of the Chevy Tahoe and Suburban, Cadillac Escalade, and GMC Yukon. According to owners' complaints to the National Highway Traffic Safety Administration, the issue can vary from an annoying vibration inside the cabin to an experience so severe that it leads to dizziness and headaches. General Motors is aware of the complaints, but the fix isn't so simple. According to spokesperson Tom Wilkinson to Autoblog, the company "has been tracking this issue for a while." The problem has a fairly low incidence rate, but when it does occur the issue can be "uncomfortable and annoying for owners." There's no precise cause for the issue, Wilkinson claims, and in some cases, simply balancing the tires or changing the door seals can make it go away. However, not all of the fixes are so simple. AutoGuide dug deep into the problem and discovered a GM preliminary information bulletin that advised dealers to remove the headliner and to check the roof's bonds to the bows that go across the vehicle. However, that document included a note that the solution might not entirely eliminate things. According to AutoGuide, adding Dynamat insulation to the roof sometimes helped the problem. A GM spokesperson also told AutoGuide the company fixed the problem at the end of the 2015 model year, and didn't go into any more detail. This roof issue seems linked to some of the worst droning in these SUVs. According to one complaint from a 2015 Suburban owner to NHTSA: "Roof will not remain attached to the roof bows. This causes the buffeting similar to a window being down when all are up. The results span from annoying to painful." A 2015 Yukon owner claims to have another alleged cause for the problem in a NHTSA complaint from February 2015. This person brought their SUV to the dealer seven times over the course of four weeks for vibrations. The dealer replaced the driveshaft, suspension components, and more, but nothing worked. According to an engineer to the service adviser: "In an effort to prevent roll overs, they designed the frame and body mounts too stiff. There are 40 engineers working on issues, they have no solutions that work across the board." Wilkinson told Autoblog that GM is working with customers on an individual basis to rectify things. Since these are newer vehicles, dealers should also fix the problem under warranty.