It’s that time of year again! Oktmotorfest is back, and DriverSource of Houston, Texas, has rolled out nine of its finest for the occasion. Leading the charge is a German-market Italian: a Ferrari 308 GTS Quattrovalvole wearing a widebody kit from Koenig Specials of Munich, one of the country’s most notorious tuning houses. Close behind is the 2002 Turbo, the car that brought boost to European showrooms. From there the lineup goes on to span five decades of Porsches, BMWs, and AMG muscle, from a soft-window 911 Targa and a houndstooth-trimmed long-hood 911 to a Z8 that BMW built like an escaped concept car. Grab a stein and settle in, because there’s plenty here worth raising a glass to. Prost!

Auctions for the 2026 Oktmotorfest Collection begin on Tuesday, October 27, with additional lots being added in the following days. A preview of the collection continues below.

Euro 1983 Ferrari 308 GTS Quattrovalvole w/ Koenig Widebody

Leonardo Fioravanti’s 308 was Ferrari’s first two-seat, mid-engined V8-powered road car, and its DNA lives on in the Ferraris rolling out of Maranello today. The 32-valve Quattrovalvole was a major refinement to the formula, and arrived in 1982. This European-market example was delivered new in Germany and carries the work of Koenig Specials, the Munich shop that Willy König made one of the most recognizable names in ’80s tuning. Its Koenig-Ferrari Specials 308 kit includes flared and sculpted bodywork, a rear spoiler, and Koenig mirrors, joined by a quad-tip sport exhaust and a plate that reads KOENIG-308. The car was brought to Houston in the mid-’80s and has lived there nearly ever since under limited ownership, serviced for years by Ferrari of Houston. A major service including the timing belts was completed in August 2026, and the car was fitted this year with new Daytona-style seats trimmed in Italy using strips made on original Scaglietti dies. It also comes with a trove of service records and period Koenig paperwork, which includes price lists for everything from widened rear fenders to a water-injected turbo kit to a holiday sales letter from Willy König himself—fun! And of course, who doesn’t love a gated shifter?

1974 BMW 2002 Turbo

Before the 2002 Turbo reached showrooms, Dieter Quester had already won the 1969 European Touring Car Championship in a boosted works 2002. The road car arrived at Frankfurt in 1973 with a KKK turbocharger, Kugelfischer mechanical injection, a red-bezel gauge cluster with a dash-mounted boost gauge and “turbo” script mirror-imaged across the air dam for the benefit/intimidation of the car ahead. Just 1,672 were built. Per its BMW Classic certificate, chassis 4290236 was completed in Chamonix in March 1974 and delivered new through BMW Italia in Verona. It sat garaged near Turin from 1982 until Oldenzaal Classics in the Netherlands treated it to a refurbishment, and it has covered roughly 530 kilometers since.

1968 Porsche 912 Soft-Window Targa 5-Speed

Porsche introduced the Targa for 1967, naming the model after its wins at the Targa Florio and giving it a stainless roll bar, a removable roof panel, and a zip-out plastic rear window. A fixed glass window became optional from late 1967, and most buyers took it—which makes the soft-window cars all the rarer today. This 912 pairs that top with the four-cylinder that made Porsche ownership a little more attainable in the ’60s, and features the optional five-speed gearbox, as well. It was bought new by a Detroit resident and serviced by Mahag of Munich at 5,100 miles—sounds like a lengthy European delivery tour! Its Kardex lists matching numbers and shows that the car was originally finished in Light Ivory. It is accompanied by a manual, a 1968 dealer brochure, tools, Targa top cases, and more.

1972 Porsche 911T Coupe 5-Speed

In the 1972 model year, the 911 received a larger 2.4-liter flat-six and the new 915 five-speed. It also got the one-year-only external oil filler door on the right rear quarter, which Porsche dropped after gas station attendants reportedly kept filling the oil tank with fuel (yikes!). This Light Ivory 911T has all three, along with Bosch mechanical fuel injection and an electric sunroof. Black Porsche rocker script is called out on the original sales invoice from Stoddard Imported Cars of Willoughby, Ohio, in September 1972. That invoice is the start of a paper trail that includes warranty and maintenance booklets, early registrations, Porsche correspondence, and records tied to the original owner running into 2020. Just as impressive is what hasn’t changed; the car is said to be unrestored and retains Sekurit glass, Pepita houndstooth upholstery, and a dashboard that has escaped the cracking common to early 911s. It still carries a decal from the 1978 Porsche Parade in Aspen, along with a 2024 version to show it’s still getting out and about.

1974 Porsche 911 Carrera Targa

The Carrera name traces back to Porsche’s class wins at the Carrera Panamericana, and for 1974 it was applied to the top-of-the-range 911. The US car’s 2.7-liter engine traded the European RS-derived mechanical injection for K-Jetronic, but they kept the look: flared rear fenders, body-color headlight rings, bold Carrera scripts down the sides, and a ducktail spoiler. This Guards Red Targa is one of just 246 imported to the US for the model year.

27k-Mile 2001 BMW Z8

Henrik Fisker’s modern take on the 507 needs little introduction, and this one shows his Z8 at its best. It was sold new in Houston to an avid Z8 owner and is reportedly one of just 137 finished in Bright Red over black Nappa leather (red was selected for only about 5% of production). Service history is traced from 2001 to this year, with recent work by BMW of Ridgefield and BMW of West Houston. Along with a color-matched hardtop, the car comes with a hardtop stand, removal tool, and cover. Also included are the window sticker, a Motorola phone, a wind deflector, Z8 key pouches, a BMW Audiophile demo disc, a VIN-matched coffee table book, and even a toy Z8 for the shelf. 

17k-Mile 2012 Mercedes-Benz SLS AMG Roadster

The SLS was the first car that AMG developed entirely on its own, and the roadster traded the coupe’s gullwing doors for open-air theater. Its hand-assembled M159 V8 displaces 6.2 liters but wears AMG’s “6.3” designation as a nod to the legendary 300 SEL 6.3. It sits low in the chassis thanks to dry-sump lubrication and sends 563 horsepower to a rear-mounted, seven-speed dual-clutch transaxle. This example was delivered to Mercedes-Benz of Fredericksburg, Virginia, at a sticker price of $210,995. It was specified in Designo Mystic White II over Designo Exclusive Porcelain and black leather, with a Dinamica microfiber headliner. Options include AMG Adaptive Suspension, high-gloss carbon-fiber interior trim, the AMG exterior carbon package with carbon mirror covers, and Airscarf neck warmers. It shows 17k miles and was serviced by Mercedes-Benz of West Houston in July 2026. It’s offered with the original window sticker, owner’s manuals in their folio, the wind deflector, a battery charger, and the optional indoor car cover in its AMG bag.

1978 Porsche 928 5-Speed

Porsche built the 928 to replace the 911. Obviously, that never happened, but the front-engined V8 grand tourer did become the only sports car ever named European Car of the Year. This first-year example has a spec as interesting as an early 928 gets: Silver Metallic paint , no sunroof or rub strips, a five-speed manual transaxle, and an orange and black interior that’s about as ’70s as one could ask for. The car retains its Porsche Blaupunkt radio. Service in 2025–26 saw rebuilds of the A/C compressor, fuel distributor, and alternator, as well as other work, so should be as ready to drive as it is to admire. It comes with an owner’s manual, a tool kit, a space-saver spare, and ownership and service history back to 1981.

1995 BMW M3 Coupe 5-Speed

1995 was the first year American buyers could walk into a BMW dealer and drive out in an E36 M3. This was the first M3 with a straight-six, and its blend of everyday comfort and razor-sharp handling helped the E36 generation earn a spot on Car and Driver’s 10Best list every year it was on sale. Today it’s one of the most beloved driver’s cars of the ’90s. This first-year example is finished in Cosmos Black Metallic with black Nappa leather Vader sport seats, and its S50 inline-six sends 240 horsepower through a five-speed manual gearbox and a limited-slip differential. Factory options include a power sunroof, heated seats, cruise control, an onboard computer, and an M Sport multifunction steering wheel. The car shows 28k miles but is well-traveled, with registration history in Oregon, Washington, Canada, and a stint in the Netherlands. It came back to the States last year, and then ran the 2025 Tejas Turismo rally through the Texas Hill Country. It was most recently serviced by ABR Houston in December 2025 and comes with owner’s literature, both keys, and a tool kit.

A full list of cars in the Oktmotorfest 2026 Collection is below. We’ll update this list with live links as they become available.

  • 1974 BMW 2002 Turbo
  • 1968 Porsche 912 Soft-Window Targa 5-Speed
  • 1972 Porsche 911T Coupe 5-Speed
  • 1974 Porsche 911 Carrera Targa
  • Euro 1983 Ferrari 308 GTS Quattrovalvole
  • 27k-Mile 2001 BMW Z8
  • 17k-Mile 2012 Mercedes-Benz SLS AMG Roadster
  • 1978 Porsche 928 5-Speed
  • 1995 BMW M3 Coupe 5-Speed