69k Original Miles: 1984 Cadillac Eldorado Biarritz

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There comes a time when we each wish to live life at a more sedate pace. Escaping the hustle and bustle of our daily grind is essential for protecting our health and well-being. Some people grab their surfboard to catch a wave, while others turn to meditation. This 1984 Cadillac Eldorado Biarritz offers an automotive alternative. It is a genuine survivor with 69,000 miles on the clock, possessing the luxury appointment for which the badge is synonymous. All it needs is a new home, and I must say a big thank you to Barn Finder T.J. for spotting the Biarritz listed here on eBay in Lakeland, Florida. The seller set their auction to open at $10,000, but has received no bids at this time.

The Eldorado had been a staple of Cadillac’s model range since 1953, with the company releasing its Tenth Generation in 1979. Downsizing was the order of the day, with the latest Eldorado featuring a shorter wheelbase, overall length, and narrower width than its predecessor. This approach also reduced the curb weight across the entire range, improving performance and fuel efficiency. This 1984 Eldorado is a Biarritz. The seller describes it as a Triple-Yellow vehicle, though the paint shade looks closer to Code 59 Flax than to anything I would describe as genuinely Yellow. The presentation is pretty impressive, with straight panels, only a few minor paint flaws, and no evidence of rust. However, the car rings a few alarm bells, and it will be interesting to gauge reader feedback on the subject. There is no mention of prior accident damage, but there appears to be a significant color mismatch on the passenger-side rear quarter panel. It may be nothing or the result of a minor scrape, but asking the seller the appropriate questions would seem wise. Otherwise, the Landau-style vinyl top looks excellent, there are no trim or glass issues, and the Caddy retains its factory wire wheel covers.

Powering this Biarritz is the 4.1-liter “HT-4100” V8. Buyers received a four-speed automatic transmission as standard equipment, along with power steering and power brakes. The HT-4100 was a ground-breaking design, but it developed a reputation for fragility and unreliability. However, if one has survived for over forty years, it is probably a good one that could still deliver close to the factory-quoted 135hp and 200 ft/lbs of torque. The car has a genuine 69,500 miles on its odometer, and it appears the figure is documented. Although not specifically stated, it appears to be a turnkey proposition with no mechanical needs or shortcomings.

This Eldorado demonstrates why it is worth carefully reading a seller’s listing. They describe its interior as being trimmed in cloth, but that looks like leather to me. It’s a pretty pale shade, so the lack of marks and yellowing seems to not only support the mileage claim, but also suggest that the Biarritz has been a prized possession. The only aftermarket addition is a modern JVC CD player, but the interior didn’t really need much. It left the line with climate-control air conditioning, power windows, power locks, power front seats, a power antenna, cruise control, a tilt wheel, and remote exterior mirrors. The carpet may be slightly worn beneath the driver’s feet, but if the Caddy is considered a survivor-grade vehicle, the overall appearance is comfortably acceptable.

This 1984 Cadillac Eldorado Biarritz is an extremely tidy survivor with only one question mark hanging over it. The seller doesn’t mention an accident history, but the color mismatch on the passenger side suggests there might be something they aren’t telling us. Beyond that, there is little about this classic deserving criticism. Recent successful sales suggest the bidding probably won’t climb far above the opening figure, but the classic scene is renowned for producing surprises. Do you think that will happen this time?

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Comments

  1. Randy Rush

    i have an 88 eldo with the 4.5 motor. ive driven it 25k in the last year without any problems. Paid 2500 bucks for mine.

    Like 4
  2. Yankeetr5

    Jeezus…135hp out of a 4L V8? And probably at 12mpg? I’ll pass. They were probably “fragile” from people stomping the accelerator to the floor all the time just to get it going!
    That said, I’ve always like the shape/styling of these, especially as the years have gone by.

    Like 6
    • Duaney

      No they will get over 20 mpg. They had an issue of head gasket leaks, but like the article says, if this one runs good, it’s not a bad engine. Cadillac recommended a coolant additive that some owners neglected

      Like 5
    • Larry Daigle

      Always heard bad things about that engine! Had two of them and three olds toronado’s! All had the olds 307! Great motors, terrible transmissions. Very weak. At least the 325 version.

      Like 0
  3. Todd J. Todd J.Member

    I’ve always liked the look of these, they have been on the back burner of my bucket list for years. This is one of the nicest I’ve seen for sale in awhile (how many quarts of Armor All did they use to detail it?). However…..I’ve heard nothing good about the HT-4100 engine and was warned by those in the know to keep movin’, nothing to see here.

    Like 2
    • WILLIAM FLYNN

      GM made a computer chip for these 4100’s that eliminated the problem of the 8-6-4 computer operating system that allowed the car to run on 8 cylinders all the time. End of problem.

      Like 0
      • Mike

        I think that was the 6.0 liter and not the 4100.

        Like 3
      • Duaney

        The 4100 never had the 4-6-8 technology. That was on the 368 cube big block engine.

        Like 4
      • The Cadillac kid

        The HT-4100 was not a variable displacement engine so it did not run on 4,6 or eight cylinders and there was no computer chip to change anything you’re a little bit mixed up.

        Like 0
  4. Stan StanMember

    Nothing today comes close to this stature and elegance.

    Like 5
  5. Reg Bruce

    I don’t think the HT 4100 had the 8-6-4 “ability” and that only the 6.0L engine was available with it.
    Other than being used for a few years with some “commercial” chassis, it was only available for 1981 – which predates the HT 4100 by about 1 year.

    Experts please comment further.

    Like 2
  6. hairyolds68Member

    if an engine has head gasket issues, then IMO it’s not a good engine and these are not. i have done way too many head gaskets back in the day to say these were good engines.

    Like 5
    • Duaney

      Sure the design was lacking, but the idea here is that if this one runs well, then it wasn’t subject to the problems. The problems crop up in the early years. But not saying that this one couldn’t develop an issue later on, but it’s less likely. Also it’s important to add the Cadillac authorized and required special additive to the cooling system.

      Like 2
  7. Nelson C

    These still had all the looks but performance of the then new ’79 was in the rear view. Output from the 4100 was adequate for the last days of 55 mph. This is a genuinely pretty car.

    Like 1
  8. Shuttle Guy Shuttle GuyMember

    A beautiful classic! I owned two Seville’s myself.

    Like 1
  9. Phil D

    That car is indeed Flax, inside and out, a very pale yellow. Only Cadillac used that color on production cars, although Oldsmobile did use the Flax exterior color as a basecoat under a pearl midcoat on an auto show circuit preview vehicle of the upcoming W-body Cutlass Supreme sedan.

    Like 1
  10. DD

    Here we go yet again. Another overpriced flip from ol Mecum Kissimmee Steve.

    Like 1
    • Duaney

      One bid, and he does have 100% positive feedback

      Like 1
  11. The Cadillac Kid

    Once again I will say I have owned three Cadillacs these years, an 81 an 84 and an 85 Seville. One had the 4-6-8 engine and the other two had the HT 4100. They all had 150,000 miles when I bought them used and I never had one bit of problem with the engines. I liked the 84 and 85. They had digital dashes, that were so cool at night.

    Like 1

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