1985 Cadillac Eldorado Biarritz Convertible, 30k Miles, No Reserve! on 2040-cars

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GM patent reveals new two-stage turbocharger

Modern turbochargers may be some of the best ever made, but performance is something that engineers are always trying to improve. According to GM Inside News, General Motors (GM) is hoping to alleviate some of the negative aspects of a two-stage turbocharger setup with a newly-patented design. The patent, that was filed on May 19, 2016, reveals a clever bypass system that allows the engine, a four-cylinder unit, to optimize both the low-pressure and high-pressure inlets for its respective functions. According to the filing, a conventional two-stage turbocharger setup is engineered to allow both turbines to operate simultaneously at low and mid engine speeds. At high engine speeds, only the low-pressure turbine works. The setup can't isolate either the low or high pressure side, which can impair low-end performance. GM's new two-stage turbocharger setup looks to eliminate this by linking the high-pressure turbo to the exhaust manifold through the high-pressure inlet duct. The low-pressure turbo is attached to the high-pressure turbo by a low-pressure inlet duct, which is linked to a connecting channel. A single actuator that is housed in the exhaust manifold creates a bypass that can opens the high-pressure inlet or close the connecting channel. Depending on what the engine load and speed is, the ECU guides the actuator—a single rotating spindle with discs corresponding to flanges on the high and low pressure sides—to isolate one of the two turbos. Isolating the turbos allow the respective inlets to be engineered for the best possible fluid dynamic performance. The setup should increase performance and decrease lag. There's no word on what car this setup will make an appearance on, but it will most likely be used in premium vehicles before trickling down to the rest of GM's vehicles. Related Video: News Source: GM Inside News, AutoGuide via GM Authority Cadillac Chevrolet GM Technology Sedan turbo patent engine turbocharging

The CadMad shooting brake Eldorado Brougham-Nomad cross is up for auction

The CadMad custom 1959 Cadillac Eldorado Brougham is the coolest car crossing the block at the Scottsdale Barrett-Jackson auction. All arguments to the contrary are wrong and can be redirected straight to the gallery above. This 16-year project built by Super Rides and commissioned by the late Steve Barton won the Don Ridler Memorial Award at the 2019 Detroit Autorama, which goes to the custom build that shows the best creativity, engineering and quality workmanship. All of those qualities are on full display in this Eldorado Brougham-Nomad mashup. Just so we’re all on the same page, a 1959 Cadillac Eldorado Brougham was no normal Cadillac at the time. The sedanÂ’s exterior design is thanks to Pininfarina, as Cadillac had the Italian design company tweak its styling. It resulted in a much more subdued Cadillac than the rest of Caddy's giant fin-tastic designs of the decade. Only 200 were made over the course of a couple years, and they remain some of the rarest production Cadillacs to this day. The “Fawntana Rose” Cadillac standing before us is a shooting brake interpretation of that famous sedan. It has lost 18 inches in overall length, four inches in width and the rear doors have been completely eliminated. A Chevy Nomad roof was shortened by a couple inches and grafted onto the bodywork. The builders say that every last piece of sheet metal was modified for this build. Still, thereÂ’s still no mistaking it for a Cadillac. The chrome bumpers and lights were left mostly untouched, and the small fins were retained, as well. That Nomad roof was painted in Titanium Silver for contrast, the same silver thatÂ’s used on the new Ford GT. Things only improve when you open the hood. A 632-cubic-inch twin-turbo V8 built by Nelson Racing Engines (NRE) powers the shooting brake. Most of the time (on 91 octane fuel), it produces around 1,000 horsepower and 950 pound-feet of torque. Feed it 112 octane fuel and NRE claims itÂ’s capable of producing upwards of 2,500 horsepower. Yowza. A four-speed automatic transmission and strengthened Corvette transaxle somehow attempts to put the power down to the rear wheels. The seats are reflective of the amount of power this car puts down — 2012 Cadillac CTS-V buckets were used and modified with mauve-colored upholstery. All the trim was hand-painted, including the wood-grain flooring in back and is meant to “mimic the African Wenge and Tigerwood Maple.”  The time and effort that went into this built is truly astounding.

Sunday Drive: An automotive flavor for every taste

Last week was flush with interesting new vehicle debuts, led by the new 2019 Hyundai Santa Fe. This crossover is entering straight into the heart of one of the world's most competitive automotive segments, and it's doing so with a fresh sense of style and a brace of new technologies. Our readers are clearly intrigued – the Santa Fe was the biggest news story of the last week on these online pages. It's fitting that a crossover generated a lot more interest than a traditional wagon, though we don't really have to be happy about it. Still, the completely new, fully redesigned Volvo V60 is worth taking another look at. First of all, it's pretty, in a traditionally Scandinavian way. Second, it's quick, with a 0-60 time of as little as 4.8 seconds. And finally, it's practical, with all kinds of room for cargo without the dynamic penalties of an unnecessary lift kit. Moving on from new vehicle debuts, we took another long look at the Honda Ridgeline. It's definitely a non-conformist pickup truck, based not on a body-on-frame platform but on a more carlike unibody design. That means it can't tow as much as some other trucks, but it also means the Ridgeline drives better than any of its more truckish competitors. It's the Swiss army knife of pickup trucks. Rounding out our coverage from last week are three sets of spy photos, each showing the interior of a hotly anticipated new model. One is a truck, one is a crossover, and the last is a sportscar. All of them are worth another look. As always, stay tuned to Autoblog this week for all the most important news in the automotive world. 2019 Hyundai Santa Fe unveiled 2019 Volvo V60 | Sleek, swift new twist on the Swedish wagon 2018 Honda Ridgeline | Pocketknife pickup is up for anything 2019 GMC Sierra interior looks just like the Silverado's 2019 Cadillac XT4 interior has actual buttons, no more touch-sensitive panel 2020 Porsche 911 992 spy shots show interior and manual transmission Cadillac GMC Honda Hyundai Porsche Volvo Truck Crossover Wagon Luxury Performance Sedan hyundai santa fe