Kremer 917

1981 Porsche 917 K-81

Offered by RM Sotheby’s | Monaco | May 2024

Photo Courtesy of RM Sotheby’s

Porsche’s 917 is one of the most legendary race cars of all time. It was produced in quite a few variations after its 1969 introduction, including the quite famous 917K and the ultimate evolution: the 917/30.

Porsche stopped racing the 917 after the 1973 Can-Am season and moved on to the 936 for 1975. However, in 1981, Le Mans changed their rules and it sort of opened the door for the 917 to return to the 24 Hour. Porsche themselves didn’t have much interest, but Kremer Racing did. With the support of Porsche, they built a new 917 to Group 6 specifications and dubbed it the 917 K-81.

It’s a Kremer aluminum spaceframe chassis underneath similar to that of a Porsche-built 917, and it is powered by a 5.0-liter flat-12. The competition for this chassis consists of:

  • 1981 24 Hours of Le Mans – 38th, DNF (with Bob Wollek, Xavier Lapeyre, & Guy Chasseuil)
  • 1981 1000km Brand Hatch – 26th, DNF (Wollek & Henri Pescarolo)

Not super successful, and after Brands Hatch, that was it for the 917. The current owner acquired this car in 2011 and used it at various track days. The 5.0-liter engine was rebuilt recently, and the whole package has an estimate of $3,800,000-$5,500,000. Click here for more info.

CLK GTR GT1

1997 Mercedes-Benz CLK GTR GT1

Offered by RM Sotheby’s | March 2024

Photo Courtesy of RM Sotheby’s

This is, ostensibly, the racing variant of Mercedes’ C208 CLK-Class. Except that the true racing variant of the C208 was the CLK DTM. The GTR was an entirely different animal, sharing just the “CLK” name and a loose interpretation of the front grille and headlights. The CLK GTR was so extreme that it had to be homologated as its own thing, of which 20 road-going coupes and six roadsters were built. They were the most expensive new cars in the world when they were sold in the late ’90s/early ’00s.

The racing versions were pretty special as well. Initially campaigned in the 1997 FIA GT Championship, the cars proved somewhat successful and were replaced by the CLK LM by the 1998 24 Hours of Le Mans and later by the doomed CLR for 1999.

Power is provided by a 6.0-liter V12 that made 600 horsepower, and the competition history for this chassis (004) includes:

  • 1997 FIA GT 4 Hours of Nurburgring – 1st (with Bernd Schneider and Klaus Ludwig)
  • 1997 FIA GT 4 Hours of Spa – 2nd (with Schneider and Alexander Wurz)
  • 1997 FIA GT 1000km Suzuka – 7th (with Schneider, Wurz, and Aguri Suzuki)
  • 1997 FIA GT 3 Hours of Sebring – 1st (with Schneider and Ludwig)

It was sold by Mercedes-Benz to its current and only private owner in 2015. It’s a pretty big deal from a golden era of GT racing – this car competed against McLaren F1 GTRs and Porsche 911 GT1s, etc. The action closes on this one in two days. Find out more here.

March-Alfa Romeo

1990 March-Alfa Romeo 90CA

Offered by RM Sotheby’s | Coral Gables, Florida | March 2024

Photo Courtesy of RM Sotheby’s

March Engineering built their first CART open-wheel race car in 1981 after being around Formula One since 1970. The 1990 90CA would be their last chassis to compete at Indianapolis. Only three 90CA chassis were built.

Two of them were powered by Alfa Romeo engines for that year’s 500. It was a turbocharged 2.65-liter V8 that made about 700 horsepower. The competition history for this car, 90CA-001, includes:

  • 1990 Indianapolis 500 – 13th (with Al Unser)

For the rest of the season the car was campaigned by Roberto Guerrero in various races, also for Patrick Racing. This car represents the last time either March or Alfa Romeo competed at Indy. And it was driven by one of the best ever at the Speedway. The estimate here is $80,000-$120,000. Click here for more info.

Group A Peugeot 309 GTi

1987 Peugeot 309 GTi 16V Group A

Offered by Iconic Auctioneers | Stoneleigh Park, U.K. | February 2024

Photo – Iconic Auctioneers

The 309 was a boxy, boring small three- or five-door hatchback sold by Peugeot between 1985 and 1994. The French have a long history of making the most of boring cars, and Peugeot did that here, selling a GTi version, which was a hot-ish hatch.

The road car shared its powertrain with the 205 GTi, one of France’s best hot hatches. It had a 1.9-liter inline-four making 158 horsepower. Not bad. This car was built in 1988 as a Group A rally car for the British Rally Championship. Peugeot then ran the car themselves for 1989 and 1990.

Come 1991, the Peugeot team boss wanted to showcase a young driver, future WRC champion Richard Burns, and entered him in the WRC RAC Rally, where he and his co-driver finished 16th as the top two-wheel-drive car.

The car remained in storage with Peugeot until 1998, at which point it was sold to a privateer. Burns found out about the car and acquired it for his own collection. Now it’s being sold from said collection with an estimate of $88,000-$100,000. More info can be found here.

Chevron B31

1975 Chevron B31

Offered by Iconic Auctioneers | Stoneleigh Park, U.K. | February 2024

Photo – Iconic Auctioneers

Chevron‘s B31 was a sports prototype race car that initially competed in the 1975 European 2-Litre Championship. It was an evolution of the 1973 B26 and was actually entered in high-level competition through 1990. Which is an insanely long time to keep a race car around.

This car previously was fitted with a Cosworth DFV but has since been taken back to its as-designed 2.0-liter Hart DOHC inline-four that was rated at 290 horsepower. It has a Hewland five-speed manual gearbox and fiberglass body work.

It is the fifth of six B31s built in 1975. It has a Martini livery and won a historic championship in 2013. It now has an estimate of $125,000-$150,000. Click here for more info.

Napier Samson

1904 Napier L48 Samson 15-Liter

Offered by Bonhams | Amelia Island, Florida | February 29, 2024

Photo – Bonhams

The roots of Napier could be traced back to a company founded in 1808. The original founder’s grandson took over the company in 1895 at age 25. Just a few years later they were building motor cars. And race cars.

The L48 was built for setting records. It’s powered by a massive 15.0-liter inline-six that makes an incredible 240 horsepower. At Ormond/Daytona Beach in 1905 the car hit 104 mph over the flying mile. That was a world record, and it was the first car to hit 100 mph in the U.S. and the first British car to break that barrier. In 1908 it broke 130 mph at Brooklands.

Napier later sold the car for scrap, which is pretty terrible in terms of keeping your history alive. The engine went into a boat and survived, later being discovered in Australia, where a replica of the original 1904 L48 was constructed around it.

Sure, this isn’t the exact car that set the speed records, but the wonderful one-off motor did. It’s still worth a lot: with an estimate of $900,000-$1,100,000. Click here for more info.

Rigling-Duesenberg

1933 Rigling-Duesenberg Race Car

Offered by RM Sotheby’s | Miami, Florida | March 2024

Photo Courtesy of RM Sotheby’s

Herman Rigling and Cotton Henning were chassis builders during the “Junk Formula” years at Indianapolis. And their racing chassis were logged as “Rigling” in the Indianapolis 500 box scores. The junk formula was supposed to ensure stock-ish engines (in some cases, very stock). No superchargers, limited displacement, etc.

That said, you could still build a scratch-built racing engine and meet the criteria. Enter August Duesenberg, who built a beauty that this car first ran with at Indy in 1931. This car’s Indy 500 history includes:

  • 1931 Indianapolis 500 – 35th, DNF (with Babe Stapp)
  • 1932 Indianapolis 500 – DNQ (with L.L. Corum)
  • 1933 Indianapolis 500 – 13th (with Willard Prentiss)
  • 1934 Indianapolis 500 – DNQ (with Harold Shaw)

Let’s keep in mind that this was running at Indy during Duesenberg’s glory years. For 1933 the car used an engine from a Duesenberg Model Y road car. That engine was damaged by a later owner, who tried to adapt it to accept a Model J engine. That project was never completed.

After a late-90s/early-00s restoration, during which the car was fitted with a Duesenberg Model A engine, it relocated to its current collection in 2011. There are not many Duesenberg-powered race cars out there anymore, and even fewer in private hands. This one has an estimate of $500,000-$700,000. More info can be found here.

991 935

2019 Porsche 935

Offered by Bring a Trailer | January 2024

Photo – Bring a Trailer

Porsche’s 991 generation of the 911 was exiting production at the end of 2019. Their big send off was the 911 GT2 RS, of which 1,000 were produced between 2018 and 2020. There was a track-only Clubsport variant as well. To take things even further, Porsche unveiled the 991 GT2 RS-based 935 in September 2018.

It’s a track-only car, but it was never homologated for a racing series, meaning you just go rent a track if you want to use it. Just 77 were built, and the name pays homage to the 935 race cars of the 1970s, specifically the 24 Hours of Le Mans-winning 1978 935/78. This is #13 of the 77. Porsche offered a series of classic livery wraps from the factory, but this one wears its bare carbon-fiber finish.

Power is from a twin-turbocharged 3.8-liter flat-six rated at 700 horsepower. This thing is full of race-ready goodness (more of which you can read about here) but it seems unlikely many get used to even a fraction of their potential, as they are doomed to trade hands as collectables. This one is going on five years old and still has less than 600 miles.

Alta F2

1951 Alta Formula 2

Offered by Bonhams | London, U.K. | December 15, 2023

Photo – Bonhams

Geoffrey Taylor’s Alta Car and Engineering Company was founded in 1929 and produced sports racing and a few road cars prior to WWII. In 1950, they built a Formula One car and entered five races as a constructor. But F1 was, as always, expensive. So Taylor turned his attentions to F2.

Their first Formula Two car was built in 1951, and this example is the second of five constructed. It competed in races in 1951 and 1952 and was purchased by its current owner in 1974.

It’s never been restored. The Alta F2 car was powered by a 2.0-liter inline-four that was rated at about 130 horsepower. The estimate is $76,000-$150,000, which is quite a range. More info can be found here.

Ford GT Mk II

2020 Ford GT Mk II

Offered by Mecum | Kissimmee, Florida | January 2024

Photo – Mecum

From a performance – and pedigree – standpoint, Ford’s second-generation GT blew the first-gen out of the water. It arrived in 2017, and production continued into 2022 (the first gen lasted just two model years). These were more powerful, faster, and more expensive. And they had racing trophies to back it up.

The GT race car, in the hands of Chip Ganassi drivers, scored class victories at Le Mans and Daytona. So it only made sense that Ford would offer some of that racing prowess to the public. The GT MK II was launched in 2019 as a track-only variant of the road-going GT. The twin-turbocharged 3.5-liter V6 was modified to produce 700 horsepower.

It gained a big rear wing and lost some niceties (and weight in the process). This car is #18 of 45 built and wears a Gulf livery. These were over $1 million new, and this one hasn’t been used. Click here to read more about it.