Here Are The Wildest Cars Being Auctioned At France’s Amazing Retromobile Car Show

Maserati Fire Engine Topshot
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While the Retromobile car show in France largely flies under the radar of North American enthusiasts, it’s said to be one of the craziest car shows on the planet. Imagine Monterey Car Week but a billion times weirder, and you’re on the right track. Unsurprisingly, it also has an auction, and even among properly exotic machinery, some vehicles up for grabs stand out for incredibly obvious reasons.

The 2024 auction is coming up, starting Feb. 2, and the lot list is full of vehicles you genuinely won’t find anywhere else, from a Maserati fire engine to a homebuilt single-seater with a twin-supercharged radial two-stroke engine. We’re talking oddities of the highest caliber, many of which have price tags to match.

Thankfully, you won’t have to wade through the full catalog, because I’ve picked out some of the more unique vehicles up for grabs. However, it’s still worth perusing the entire lot list, because it’s full of some genuinely brilliant cars, tractors, and motorcycles.

1967 Maserati Quattroporte Fire Truck

Maserati Fire Engine

Estimated price: €150,000 to €250,000

Fire engines and speed typically don’t go together. However, that didn’t stop a few dedicated Italians from making what might just be the best fire truck of all time. This is a 1967 Maserati Quattroporte, manual gearbox and all, that Carrozzeria Grazia turned into a fully functional fire response vehicle. Best of all, this isn’t just some publicity stunt, it’s an actual emergency vehicle used on Italian motor circuits, reportedly for Grands Prix. According to the auction listing, it was on duty through the end of the 1970s, and that’s undeniably rad.

According to the Retromobile auction listing, if it weren’t for one enthusiast, this car might no longer exist. In 1987, it was reportedly saved from the scrapheap, then changed hands a few times before an extensive and expensive-sounding six-year full restoration was carried out after 2011. Sure, an estimated hammer price of between €150,000 and €200,000 euros isn’t cheap, but where are you finding another one of these?

1958 Lamborghini Tractor With Freaking Tracks

Lamborghini Tractor Retromobile

Estimated price: €40,000 to €60,000

Just when you thought the LM002 was the most badass, Rambo-esque Lamborghini ever made, out of the woodwork comes a tracked machine from 1958. While not strictly a car as such, this three-wheeled, two-tracked, steering wheel-less Lamborghini tractor makes a Urus look like a Toyota RAV4 for a fraction of the current Lambo SUV’s price. Rodeo Drive ain’t ready for something like this.

Believe it or not, this is reportedly a prototype, one of ten made. According to the auction listing, the front tire is removable, and the rear axles are said to turn the tracks. Presumably, this steers like any tracked vehicle, but that doesn’t make it any less insane. If you want front-of-house parking, get this Lamborghini, because it’s practically guaranteed to befuddle valets.

2017 Maserati Touring Sciadipersia

Maserati Touring Sciadipersia

Estimated price: €330,000 to €400,000

For the 2018 Geneva Motor Show, coachbuilding company Touring decided to do something wild and re-body a Maserati GranTurismo with inspiration from the Shah of Iran’s Maserati 5000 GTs. The result was this blue 454-horsepower coupe that looks like nothing anyone’s ever seen before. I’m not going to say it’s good design, but it is incredibly striking, a rolling monument to questionable taste. Whoever buys this is one interesting person, as this sort of money buys many cars, but few that will make some people salivate and others do the technicolor yawn.

1987 Fiat 126 Giannini GP 650

Retromobile 126

Estimated price: €15,000 to €25,000

Finally, something reasonably priced. Hot hatches are great when they’re small, and it’s hard to get much smaller than this. The Fiat 126 is a beloved Italian people’s car, and this particular version takes things up a notch. Like Abarth, Giannini tuned Fiats, and this one was heavily massaged, with improvements including a power bump from 23 to 30 horsepower, wider arches, turbine-style wheels, and a particularly dashing set of stripes. The resulting Giannini GP 650 looks fantastic, and promises to be a little ball of fun wherever it goes. Alright, maybe not so much fun on American freeways, but you get the idea. Over the course of its life, it’s actually been upgraded further, and is now claimed to produce 35 horsepower. That’s a 52 percent increase over stock!

1964 René Bonnet Djet III Coach Multitubulaire

Retromobile Djet

Estimated price: €80,000 to €100,000

While the Alpine A110 is a widely-known and beloved French sports car thanks to media like Gran Turismo 4, the René Bonnet Djet flies under the radar, an unusual featherweight that extracted a lot from a little. Sure, this Djet III only made 80 horsepower, but it weighed very little thanks to a tubular spaceframe encased in plastic, resulting in a claimed top speed of 108 mph.

This particular Djet III reportedly has an interesting past. The Retromobile auction description claims that in 1982, it was bought by someone who sold Djets when they were new. The goal? Motorsports. Sadly, the car had an off in 1986 and sat dormant for decades, before a restoration birthed it from the ashes. You know that old car near you that’s seemingly left for dead despite the owner claiming they’ll fix it up someday? There’s a slim, but non-zero chance they aren’t bluffing.

1939 Guidobaldi ‘Guidomobile’ monoplace

Guidomobile

Estimated price: €260,000 to €360,000

Normally, cars meant for racing aren’t massively weird. For most of modern history, they’ve been built to rulebooks, often with more restrictions on performance-enhancing features than standard road cars. However, go back to a time when the world had bigger problems, say 1939, and things get strange. I’ll let the Retromobile auction listing for this thing make the introduction.

To power this machine, Francois Guidobaldi built an 8-cylinder star-shaped 1,357 cc two-stroke engine, with dual ignition, powered by a carburettor designed by him associated with two Roots-type compressors which he claimed it could produce 180 hp at 6,500 rpm.

I’m sorry, what? That is an absolutely bonkers powertrain that just ticks all the weird car boxes. Dual-supercharged? Radial eight-cylinder mounted horizontally? Two-stroke? Tiny displacement? How long did this thing take to make? As it turns out, work started in 1939, with builder Guidobaldi even building his own engine foundry, but it took decades to develop, to the point that Guidobaldi reportedly didn’t live to finish his magnificent machine. The Guidomobile is glorious lunacy and craftsmanship to the highest order. Yes, it’s going to be expensive, but it makes anything else you can buy for the money seem incredibly dull.

Of course, the Retromobile auction includes more typical high-end fare like Bugattis and Ferraris, but it won’t ever let you forget that it’s one of the weirdest and best classic car auctions on the planet. Oh, and even if you aren’t looking to buy, I hear the Retromobile show is a spectacle on its own. Someday, we’ll get to Paris and check it out in person. Someday.

[Ed Note: Just to reiterate how absurdly enormous this auction is, here are some screenshots of a few more vehicles hitting the block:

Screen Shot 2024 01 23 At 12.44.19 Pm Screen Shot 2024 01 23 At 12.46.42 Pm Screen Shot 2024 01 23 At 12.47.23 Pm

Check out the full humongous list here. -DT]

(Photo credits: Artcurial)

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43 thoughts on “Here Are The Wildest Cars Being Auctioned At France’s Amazing Retromobile Car Show

  1. Yeesh! I just ran some quick numbers and, taking two or maybe two and a half days off, I can get to Paris for about $100 if I’m willing to accept some risk and do the whole trip for about $500. And boy is it tempting.

  2. The Guidobaldi is a prime example of the insane engineering of grand touring grand prix cars of the 1930s. For all of the ones that we do know, thanks to how record keeping was done before the FIA came along in the 1940s, there are still about half of all examples missing. The French and Germans were in direct and sometimes volatile competition (take the Delage D6 V12 and Mercedes-Benz W125 which both were supercharged giants with a penchant for exploding violently) throughout the entire decade for the European Championship and everyone else was creating freakish monstrosities to try and keep up. Many of these one-offs were only ever written down as their engine or chassis manufacturer, leaving no model number or custom designation. Even worse is that the known storage locations and building garages of some of the French and Italian cars were specifically targeted by the Germans for bombing runs. World War II stunted twenty years of engineering progress thanks to these unique cars being dismantled for recycling or just outright destroyed.

  3. Twin supercharged vertical crank 8 cylinder radial two stroke?

    Yep, that’s weird. And utterly glorious. Thank you.

    I’ve sent it to all my powertrain friends telling them to try harder.

    I’m going to start work on designing an 8 rotor twin crank hot V Wankel when I get home.
    If I make the rotors small enough I think I can keep the power down to 400bhp.

      1. When we sit around talking bollocks about weird engines at work we find that pretty much all the weirdest stuff was already tried in aero engines during WW2.

        Even down to using radiator heat to generate thrust.

          1. All I get from that link is:
            “We appreciate your interest in our content. Unfortunately at this time, we are unable to allow international traffic or online transactions.”

            That’s the first message I’ve seen like that on the internet since the internet was invented. What an odd way to limit access.

  4. Perhaps the strangest thing about the Guidomobile is that the radial engine has an even number of cylinders. Virtually all aircraft radials have an odd number.

    1. It’s a two-stoke engine, which means that each cylinder fires on every revolution. Any number of cylinders can provide even firing. Not so on a four-stroke radial. Since a four-stroke fires every second revolution, it is necessary to have an uneven number of cylinders (per row, if we’re including multiple row radials) in order to achieve even firing. Even firing means, that the angle of rotation between each firing event is even. Odd firing engines tend to be running harsh and can get you into all kinds of issues with torsional vibration.

      Oh, and regarding the Roots blowers: Those are not there to boost power. They are simply a necessity for scavenging. In a radial two-stroke, the pistons can’t provide crankcase scavenging.

      BTW, my favorite radial-powered race car is the Monaco Trossi:
      https://oldmachinepress.com/2012/09/01/1935-monaco-trossi/

  5. What sort of auction doesn’t even have ONE Chevelle SS454? Did Carroll Shelby even sign any of these cars? And I want to see the Marti report on that Guidomahoozits. Get off my lawn!

  6. The Maserati Touring Sciàdipersia is beautiful! And the slightly retro interior is great. I’ll admit it has some odd touches, but nothing that should make anyone call it “a rolling monument to questionable taste”.

    All René Bonnets are sadly underappreciated.

    That Guidobaldi Monoplace is absolutely astonishing! The car and its backstory sound worthy of a whole article in and of itself.

  7. That Maserati fire engine would make perfect alpha and omega pair with one of the Morris Minor fire engines built for BMC’s factories.
    I also really like the Fiat 126 as the Italian version of a hot Kei car

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