1976 Cadillac Eldorado Convertible Fuel Injection on 2040-cars

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Junkyard Gem: 1981 Cadillac Eldorado with V8-6-4 engine

Skyrocketing fuel prices caused by geopolitical events in 1973 and 1979 led to gas lines, federal fuel economy requirements, and an increasing reluctance on the part of American car shoppers to buy big, thirsty Detroit luxury machines. General Motors had pulled off some amazing technological feats in the past — the small-block Chevrolet V8 engine and Hydramatic transmission being two extraordinarily successful ones — and so Cadillac's bosses figured that a combination of computer wizardry and clever mechanical engineering would give the 368-cubic-inch Cadillac V8 a cylinder-deactivation system and resulting superior fuel economy. Here's a very rare example of one of those 1981 Cadillacs, found in a California self-service wrecking yard. The idea behind the V8-6-4 was that computer-controlled solenoids would physically disengage the rocker arms for one or two cylinders on each engine bank under low-load conditions, converting the engine from a 368-cube V8 to a 276ci V6 or 184ci V4 (that's 6.0, 4.5 or 3.0 liters, respectively, for the metric-system aficionados among us). This sort of variable-displacement magic is commonplace today, but it was science-fiction stuff in 1981. An "MPG Sentinel" display on the dash would let the driver know how many cylinders were active at the moment, and the car would get Chevy Citation fuel economy with Cadillac luxury. The V8-6-4 was the standard engine in all 1981 Cadillacs (except for the Seville, which had the troubled Oldsmobile diesel engine as the base powerplant and the V8-6-4 as an option). Unfortunately, the V8-6-4 worked about as well as the Oldsmobile diesel: very poorly. Within a few years, most owners of these engines had disconnected the rocker-deactivation solenoids and just drove their cars as regular full-time V8s. This one has the snazzy "Cabriolet Roof Treatment" option, which boasted "textured elk grain" vinyl and could be had in one of 17 available colors. Front-wheel drive gave the early-1980s Eldorado plenty of interior space, despite its more proletarian Olds Toronado origins, and these velour-covered seats made for very comfortable road trips. The price tag started at $17,550, or about $51,650 in 2019 dollars. The 1981 Imperial went for $18,311, and that car was based on the same platform as the lowly Plymouth Volare. Meanwhile, A BMW 733i cost $28,945 and a new Toyota Cressida a mere $11,599. The 1981 Cadillacs were just a little too much ahead of their time, it turned out.

Cadillac applies to trademark Ascendiq and Escalade IQ

Let's start with what we know. Earlier this month, CarBuzz discovered trademark applications Cadillac submitted to various agencies in the U.S. and Europe to reserve the names Vistiq, Lumistiq, and Escalade IQL. Now, before the month is out, CarBuzz has found another pair of trademark applications that Cadillac has submitted to gain exclusive rights to the names Ascendiq and Escalade IQ. Sticking with what we know, the suffix -iq, as in Lyriq and Celestiq (pronounced "ik," not "eek"), indicates Cadillac's coming lineup of battery-electric vehicles. That starts with the Lyriq crossover early next year, then the Celestiq flagship sedan in 2023 (pictured). The all-electric Escalade is due by 2025. We assume an Escalade IQ and a longer version called the Escalade IQL will be battery-electric twins for the current ICE-powered Escalade and Escalade ESV. They are three of the six electrified vehicles we're expecting from Cadillac by the end of 2025. Moving on to what we suspect, two of the other three are crossovers, the last has only been referred to as a "low-roof" EV. In July 2020, GM applied to trademark the names Symboliq and Optiq. It had been thought that these would be the two coming crossovers, but a check with the United States Trademark and Patent Office showed both trademarks dead at the time of writing. GM does have an open brand mark application for "optiq," but it's not classified with motor vehicles, it's for a downloadable software application. As we've written many times before, USPTO applications don't mean we'll ever see the name or product being applied for. With that out of the way, we do have three remaining mysterious Cadillac vehicles and three names: Vistiq, Lumistiq, and Ascendiq. We also have a question: Will this be too much iq? Many of us have applauded brands abandoning alphanumerics on their cars for proper names because it could finally mean clear distinctions between one vehicle and another. If all the names are going to pull from the same or similar phonemes, this could end up being like meeting five siblings named Barry, Mary, Terry, Larry, and Gary. And we know how jokey and cruel that can get. So stay tuned. Related video: 2023 Cadillac LYRIQ revealed

Diesel engine will be a no-cost option on 2021 Cadillac Escalade

Pricing for the redesigned 2021 Cadillac Escalade was revealed yesterday, with the various trim levels ranging from $77,490 to $101,290 including $1,295 destination. And while we also learned that all-wheel drive will be a $3,000 option, what's surprising is that the optional 3.0-liter inline-six diesel engine will cost $0, this according to official pricing info released by Cadillac. The diesel is one of two engine choices for the new 2021 Escalade, the other being a 6.2-liter V8. The engine also is coming to the 2021 Chevrolet and GMC full-size SUVs, but it's not yet known what the upcharge will be there, if any. Already, the 3.0-liter I6 diesel is offered in the Chevy Silverado and GMC Sierra 1500 pickups, where it is currently a $2,500 option over the 6.2-liter V8. The Duramax inline-six turbodiesel is an aluminum-block design with dual overhead camshafts and a single, variable-geometry turbocharger. Cadillac quotes preliminary outputs of 277 horsepower and 460 lb-ft of torque. The 6.2-liter V8, meanwhile, musters 420 horses and the same torque output. The primary draw for the diesel is expected to be fuel economy. EPA estimates for the diesel engine in the Escalade (and in the GMC and Chevrolet full-size utes) have not yet been released. But in the pickup trucks, the engine returns 23 city/33 highway miles per gallon with rear-wheel drive and 23/29 mpg with four-wheel drive. The 2021 Cadillac Escalade had been scheduled to reach dealerships this summer, but it's not known whether that date might slip due to the current shutdown at GM's assembly plants. Related Video: