Well, found old story from 2008 GM did auction prototypes

I haven't checked to see what the cars look like or what they sold for but the Jalopnik story has this list from 2009
GM To Auction Near-Classics From Corporate Museum

List of Cars
1955 Buick Century
Bolero
2001 Blackhawk
G6 Rolex Pace
2007 Corvette Indy Pace/copper
2008 Corvette Indy Pace/black
1918 Cadillac
1995 Riveria Convertible
1993 Allante Pace car
1996 Presidential Limo
1998 Popemobile
1999 Eldorod
Indy Pennzoil IRL #4 (yellow)
Indy Pennzoil Panther Racing (yellow)
2003 EXT - M
2004 CTS Super V
2004 SRX Hot Wheels
2004 SRX SEMA
2005 STS MCE Integration
2006 DTS Appearance Pkg
2007 Escalade Limo
2007 Escalade SEMA
2008 CTS Sport
LMP #8
1925 Chevrolet House Car (Blue/Black)
1948 Chevy I-5 Vortech
1960 Impala
1972 Impala
2004 M/C Rock&Roll Pace (blue/yellow)
1987 Chevrolet Sprint Turbo Convertible
1989 Corvette DR-1
1989 Corvette Snake Skinner
1989 Corvette Splash
1989 Corvette ZR-1
1989 Corvette ZR-1 (Dark Red)
1989 Corvette ZR-2 Big Doggie
1989 Tracker Boom Box
1989 Zonker
1990 Corvette Right Hand Steer
1990 Corvette ZR-1 Active
1991 Caprice Classic
1991 Corvette Convertible
1991 Syclone PPG Pace
1991 Tracker Dirt
1992 Corvette ZR-1 First Built (Red)
1992 Impala SS 510
1993 Camaro ZL-1 "572"
1993 Corvette LT-1 Spyder
1993 Typhoon
1994 Corvette (Teal)
1994 Impala SS 6 Speed
1994 Impala Wagon
1994 Tracker Kalahari
1995 Monte Carlo Led Sled
1995 Monte Carlo Pro Street
1996 Camaro Brickyard Pace
1997 Corvette Alpha Build
1997 Corvette Beta Build
1997 Corvette Tiger Shark
2005 M/C Rock&Roll Pace (red)
1997 Monte Carlo Intimidator
1998 Camaro Drag
1998 Corvette First Built
1998 Corvette X-plorers
1999 Corvette C5R Show Car
1999 Corvette Shark
1999 Silverado Tonka
2000 Corvette Z06 Race
2000 Monte Carlo Brickyard #3
2000 Tahoe K5
2001 Impala Low Rider
2001 Monte Carlo Drag
Silverado #17 GMAC Racetruck
2001 Silverado Intimidator SS (Black)
2006 Silverado Craftsman Pace Flex Fuel #2
2002 Camaro Police
2002 Cavalier 425 A/FX Drag
2002 Monte Carlo Looney Tunes Pace
2002 S-10 Little Red
2003 Aveo Xtreme
2003 Corvette Lemans Pace #3
2003 Monte Carlo Rock & Roll Race
2004 Aveo X-treme
2004 Colorado SS Dark Cherry
2004 Colorado Xtreme
2004 Colorado Z-71 Vision
2004 Corvette Indy Pace
2004 Impala SS Project Vehicle
2004 Malibu Maxx SS
2004 Malibu Xtreme 2004
2004 Monte Carlo Dale Earnhardt Jr.
2004 Monte Carlo Tony Stewart
2004 Silverado Speedway
Solstice "Jazz" Transformer Movie Vehicle
1969 Reggie Jackson Camaro (red)
1990 Beretta Indy Pace
2004 Escalade Pinnacle (black)
Holden Race Car #22 (red)
2000 STS Saftey
2007 Yukon "CSI Vegas" (used in filming of show)
2003 Rendezvous CXL
1998 Rivera (teal)
2005 Colorado CC Z71
2005 Corvette Atlantic
2005 Corvette Pacific
2005 Equinox Xtreme
2004 Suburban Quadsteer
2006 HHR Official Tailgate Crew
2006 HHR Open Air
2006 HHR Panel
2006 HHR Panel Tuner
2006 HHR Xplorer Scout
2006 HHR Yearone
1995 Aurora (red)
2007 Avalanche Z-71 Plus
2007 Corvette Z06 First Built (Red)
2007 HHR SS Panel Motor City (Flat Gray)
2007 Silverado "Big Red"
2007 Silverado CC Rally Sport
2007 Silverado Country Music
2007 Silverado E85 Handy Man
1985 Calais "MSU"
2007 Silverado OCC
2007 Silverado Roadside
2007 SilveradoZ71 Orange
2007 Suburban HD Diesel
2007 Suburban Major League Baseball (Blue)
2007 Tahoe Foose
2007 Tahoe US Ski Team
Camaro Trans Am 2 seater
C/K 1500 Supertruck Chevy 2 Seat
Camaro GTZ
Camaro LT5
Corvette C5 Display Chassis
Corvette Purple Smash
Corvette Racing Boat
Corvette Trailer
Corvette ZR1 Rolling Chassis
HHR Floral
Holden Race Car (Red)
Kappa Chassis
S-10 Drag
S-10 Off Road Truck
S-10 Race Truck (Red)
S-10 Stadium Truck
2003 Centieme Concept
1916 GMC Stake Truck
1917 GMC Trailer
1948 GMC Firetruck
1978 GMC Suburban (Brown/Cream)
2003 Rollback
2004 Canyon Kayak
2004 Envoy Race Truck
2004 Envoy Water Sports
2007 Sierra All Terrain Crew
2007 Sierra HD Denali
Caprice "Fire & Rescue"
2007 Sierra Texas Edition
2007 Yukon Denali Jay-Z (Blue)
2007 Yukon XL Big Max
2007 Yukon All Terrain
2003 Hummer Spring Special
2005 Hummer Dirt Sport
2005 Hummer H2 Slant Back
2006 H3 street
2006 HHR Spring Special (Cappucino Frost)
2007 H2 Safari
2008 H3R SEMA
1994 Corvette HO
Corvette ZR 1 Snake Skinner
1904 Olds Touring Runabout
1923 Olds
1931 Olds Chassis
1940 Olds Blue
1949 Olds (Green)
1954 Olds Ninety Eight
1960 Olds 88 (White)
1970 Cutlass SX
1970 Olds 442 W30
1977 Olds Delta 88 Indy Pace
1995 Cutlass Darth Vadar
1995 Cutlass Mobil Net Race
1998 Intrigue 1998 (Blue)
1999 Intrigue 442
1999 Silhouette OSV #2
2001 Bravada Indy Pace
2002 Intrigue Last 2002
Aurora Exxon Race GTS (Gold/White)
Aurora IRL Race Car Cut-Away #5
Aurora IRL Race Car Cut-Away #5
1985 Peugeot 205 Turbo (Gray)
1985 Peugeot 205 Turbo Active (Gray)
1926 Pontiac
1926 Pontiac (Gray/Black)
1968 Pontiac Cataline (White)
1969 Pontiac GTO (Green)
1969 Pontiac GTO Judge (Orange/Yellow)
1980 Pontiac Grand Am Pickup
1994 Firebird Lingenfelter 383
1999 Grand Am SCT
2003 Sunfire X-plores (Yellow)
2006 Solstice DTP (Orange)
1967 GTO XXX Hardtop
1984 Fiero GT 2+2
1986 Firebird Trans Am Kamback
1987 Fiero GT Convertible
1991 Firebird Trans Am Twin Turbo
1993 Firebird IMSA Race car
1994 Firebird Firmula V8
1994 Firebird Trans Am 25th Ann.
1998 Firebird Trans Am Gold Rush
1998 Firebird Trans Am X-plorers
1998 Grand Prix M&M Pace
2000 Bonneville Salt Flats
2000 Firebird Rytek Project
2000 Firebird Trans Am Darth Vader
CTS-VR Race Replica (black)
2001 Aztek First Built (Black)
2001 Aztek Pace #1 (Red)
2001 Aztek SRV
2002 Firebird Trans Am Daytona Pace #2
2003 Grand AM Autocross
2003 Vibe Autocross Sema
2003 Vibe FX
2004 Grand Prix GXP SEMA
2004 GTO 1st built
2005 Firedbird Trans Am Collectors Ed.
2005 GTO SEMA
2006 Solstice Red Bull Drifter
2006 Solstice Weekend Racer
Fiero Goodwrench Race
Grand Am #85 race car
Grand Prix (show car)
GTO Drag Performance Parts
Firebird Mobil Race Car
1991 Saturn 4 Door 1991 (White)
1995 Saturn 1 Millionth
1999 Saturn 2 Millionth
2004 Ion Red Line
2004 Ion Red Line
2004 Ion Red Line
2004 Saturn Vue Spring Special
2004 Vue Red Line Street Play
Saturn Lola Race Car
1999 Grand Prix GT (red)
Regal Cielo Open Air
2001 Regal GNX
2002 Rendezvous Inca Trail (grey)
2002 Rendezvous Tour Edition SC
GTP Ultrlite (teal)
900 Pikes Peak
Malibu Friday Night Cruiser

 

And I was the guy that put that list together. There were over 900+ cars we had to consider.

 

Did you take any for yourself ?

 

no

the ones that needed to be sold were none that I would have wanted
it took us quite awhile to asemble the list of recommended vehicles to sell.....very sad times
but many were duplicates and development cars that were just not necessary to hold on to


some had to be sold without the ability to get a registration that would allow them to be licensed for the street................. GM legal was all over that
the showcars & development cars in particular

 

The PPG Syclone has been on eBay recently, and that's probably the one factor making it a tough sale. The gentleman that bought it from the auction also picked up several other GM Heritage cars at the same time.
I also met the guy who bought the Malibu Xtreme, and the yellow supercharged Sunfire. I believe he managed to get them registered in AK, so I don't know if those ones got scrap titles or not.

 

remember all those cars
just because they can't get valid street licenses,doesn't mean they couldn't be driven .....

depends where & when you want to drive it i guess

 

I'm sure there are loopholes in certain states that can be used to make registration possible, but that sort of thing seems to be getting consistently more difficult to do as the DMVs update the way they do things.
I'd buy the PPG Syclone if I had the cash, but that's something that would be better suited at shows or in a collection than as a driver.

 

1998 Camaro Drag - about 200 ft. away
2005 GTO SEMA - On loan to the Sloan Museum for a few weeks in Flint!

 

scattered to the 4 corners of the earth......who wouldda thought ..

broke my heart to have had to sell many of those cars.....but now they're in good hands,with probably better care

 

I would love that Fiero GT vert !

 

Saturn sold 1mm cars between 1995 and 1999?

what went wrong?

anyway, some of those cars look pretty cool. shame they had to be sold off.

 

Would have loved to get ZO6 #1. Had no idea this actually happened.

 

It's a shame with the Bankruptcy that they weren't replaced.

 

Truth be told many of those cars weren't keeping IMHO. There were 4 door versions of cars that we should have had 2 door versions of, some of the mules/development cars were of questionable worth,and several of the one off SEMA cars were just plain goofy (my opinion).When we made our recommendations for which cars could be sold we were very careful not to suggest the ones that were really necessary to retain for serious historical significance.

After all,there were over 900 cars......that we knew of

 

^IIRC many we're showing their age because they hadn't been maintained at all.

 

That's correct
There were just too many to really pay attention to,so many just sat under covers in huge warehouses