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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.

EV tax credits: Here's every electric car or plug-in hybrid that qualifies

Starting on April 18, the Internal Revenue Service released new guidance for U.S. buyers shopping for a new electric or plug-in hybrid vehicle. On April 18th, the IRS showed only six fully electric vehicles on the qualified list, but a day later Volkswagen confirmed its U.S.-built ID.4 also qualifies. That means right now, seven fully electric vehicles qualify for the full $7,500 EV tax credit, with three more from Chevrolet coming for the 2024 model year (we would expect these 2024 models to roll out slowly and be difficult to find for at least the first few months they are on the market). In addition to those seven fully electric cars, two plug-in hybrids also qualify for the full $7,500 credit. To qualify, a vehicle must be assembled in North America and must meet a strict set of guidelines that cover where battery materials were sourced. If any battery materials come from certain countries (importantly including China), the vehicle's tax credit is automatically cut in half. Further, according to the IRS, the vehicle's manufacturer suggested retail price (MSRP) can't exceed $80,000 for vans, sport utility vehicles and pickup trucks or $55,000 for any other type of vehicle (basically meaning sedans). Electric vehicles that qualify for the full $7,500 EV tax credit: Cadillac Lyriq (2023-2024) Chevrolet Blazer EV (2024) Chevrolet Bolt EV (2023-2024) Chevrolet Bolt EUV (2023-2024) Chevrolet Equinox (2024) Chevrolet Silverado (2024) Ford F-150 Lightning — all models (2022-2023) Tesla Model 3 Performance (2022-2023) Tesla Model Y — all models (2022-2023) Volkswagen ID.4 — U.S.-built models (2022-2023) Plug-in hybrid cars that qualify for the full $7,500 EV tax credit: Chrysler Pacifica PHEV (2022-2023) Lincoln Aviator Grand Touring (2022-2023) A smaller credit is offered on fully electric cars and plug-in hybrids that are assembled in North America but have batteries with materials sourced from unqualified countries (mostly China).

GM recalls 61k more vehicles in three campaigns

Following a stop-delivery order for its new midsize trucks and a rash of recent recalls, General Motors is issuing three more campaigns covering 60,575 vehicles in North America with 57,182 of them in the US. As of October 1, the automaker has issued a total of 74 recalls (see the ridiculously long chart to the right) this year covering 26,495,070 units in the US.
The largest campaign covers 46,873 examples in the US of the 2008-2009 Pontiac G8 and 2011-2013 Chevrolet Caprice Police Patrol Vehicle imported from Australia. It's possible for the driver's knee to hit the key and make it move from the "Run" to "ACC" position while driving. GM says its Holden division is developing a fixed-blade key that's supposed to fix the problem by only allowing it to rotate toward the "On" position. There has been one crash caused by this fault but no injuries or fatalities.
The second recall is for 10,005 units of the 2004-2007 Cadillac CTS-V and 2006-2007 Cadillac STS-V because "the fuel pump module electrical terminal may overheat." This can cause a flange to melt and allow the pump to leak fuel. GM specifies that the remedy for the CTS-V is replacing the fuel module and fuel tank jumper harness, but it doesn't specify how the STS-V is being repaired.