1975 Cadillac Eldorado Convertible on 2040-cars

Auto blog

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.

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.