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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.

2020 Cadillac XT6 earns IIHS Top Safety Pick award

The 2020 Cadillac XT6 luxury three-row crossover has proven to be plenty competent on the road, and now it turns out to have impressive performance in crash tests. The IIHS recently tested the big Caddy and gave it a Top Safety Pick award. It just missed out on the highest Top Safety Pick + rating because of headlight performance. In every single crash test, the XT6 earned the highest "Good" rating for passenger protection. Both the standard and optional forward collision prevention systems also received the highest "Superior" ratings, and they were both able to bring the car to a stop before colliding with another vehicle at speeds up to 25 mph. The one area it didn't earn top marks was with headlights, which were rated "Acceptable," the second-highest score. Though it doesn't factor into the Top Safety Pick criteria, the IIHS also rated the child seat LATCH anchor access "Acceptable." Among three-row luxury crossovers, there are three others that have the Top Safety Pick rating: the Infiniti QX60, Lexus RX and Volvo XC90. Only one crossover in this segment has the highest Top Safety Pick + rating, and that's the Mercedes-Benz GLE-Class.

Cadillac Super Cruise costs $25 per month as a standalone plan

We already knew that Cadillac's award-winning Super Cruise technology package was free for owners of properly equipped vehicles for the first three years. And now we know exactly how expensive it will be to keep the system active after the complimentary period ends. According to a Cadillac spokesperson, the automaker is currently informing CT6 owners in the United States that they can purchase a standalone Super Cruise plan for $25 per month. Alternatively, customers can add Super Cruise to select OnStar and Connected Services bundles for an additional $15 per month over the cost they currently pay for those bundles. In case you're wondering what that monthly payment will cover, the spokesperson added, "The Super Cruise plan enables the map updates and precise GPS corrections required for Super Cruise to function, and also connects the vehicle to an OnStar Emergency advisor in a case where a driver is non-responsive to escalating alerts." As was previously reported, owners of 2018 CT6 models equipped with Super Cruise are getting an additional year of complimentary service, which means they should be prompted to make a decision sometime in 2021. Even if they choose not to renew their Super Cruise plan, features like lane-keep assist and adaptive cruise control will continue to function. Related Video: