2001 Cadillac Deville Dts Sedan on 2040-cars

Auto blog

Hennessy wastes no time in supercharging the 2015 Cadillac Escalade

The ink is still drying on the all-new 2015 Cadillac Escalade sales brochures, but that hasn't stopped Texas-based Hennessey Performance (HPE) from leaping out of the gate with its own high-performance variant. In stock form, the big fourth-generation Cadillac flagship arrives with a new small block naturally aspirated 6.2-liter Ecotec3 V8 delivering 420 horsepower and 460 pound-feet of torque. Fresh out of the showroom, the 5,900-pound SUV will sprint to 60 mph in 5.9 seconds.
While that is plenty fast for some owners, others don't want to be shamed by a 550 horsepower Mercedes-Benz GL63 AMG or a 510 horsepower Land Rover Range Rover Sport - both will leave the stock Escalade at a stoplight.
The team at HPE has come to the rescue with its HPE550 supercharger upgrade, which includes a belt-driven supercharger, air-to-water intercooler, recalibrated engine management software and a three-year/36,000 mile powertrain warranty. With 6 psi of boost, the direct-injected 6.2-liter is tuned to deliver an impressive 557 horsepower and 542 pound-feet of torque - gains of 32 percent and 18 percent, respectively, over stock. Although HPE isn't releasing performance figures as of yet, our math says that should be enough power to put the two Europeans in the Cadillac's rearview mirror. The company also offers a set of 20-inch lightweight H10 forged monoblock wheels, to further improve performance.

Cadillac Super Cruise needs subscription after free trial period

Not long ago, Motor Trend broke the news that Cadillac's Super Cruise is only free for the first three years, after which the Level 2 autonomy system moves to subscription pricing. MT's report came on the eve of 2018-model-year Cadillac CT6 buyers being asked whether they wished to retain access to their Super Cruise. A few days after that report, Cadillac said it would give those first-year buyers of the technology — "the helpful adopters" — another free year, so they'll need to make a decision in August 2021 along with the 2019MY CT6 buyers. After a bit of digging by other outlets, it seems Motor Trend broke the Super Cruise news primarily to members of the media (including us); the details in the report have been communicated to customers in fine print in at least two places. First, let's clarify that the subscription is for OnStar, not Super Cruise only. Cadillac has made clear since the beginning that the tech needs an active OnStar plan, a Wi-Fi Hotspot, a working electrical system, cell reception, and a GPS signal to work. Knowing that, and knowing OnStar is only free for one month on new vehicles — GM shortened the free trial last year from three or six months — before requiring a subscription, might have encouraged someone to ask the question before now (we didn't...). In response to Jonathan Gitlin at Ars Technica asking Twitter about who knew, Bozi Tatarevic responded, "It might not have been released in the press materials but I remember reading about it in the order guide documents for the CT6 and noting that it was tied to OnStar and would eventually require a plan that started at like $25 per month." And Tatarevic pointed to this snippet in The Philadelphia Inquirer review of the CT6 from 2018: "The Super Cruise feature is part of OnStar and is free for three years. OnStar advertises subscriptions from $24.99 to $59.99 a month." If Super Cruise is only free as long as OnStar is free, then new car buyers now will get the tech for one month. Owners who cancel OnStar or choose a plan that doesn't include Super Cruise will still benefit from adaptive cruise control and lane-centering.   The automaker hasn't said what Super Cruise pricing will be, but the OnStar site apparently reveals the answer. There are six plans listed on the Compare Plans page, but two are combinations of other plans.

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.