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#1 |
![]() Join Date: Nov 2021
Location: Mokena, IL
Posts: 78
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I watched an interesting video on YouTube from VetOnVette757 https://www.youtube.com/channel/UCjs...gyyamDHPJhYeJw where he discussed the topic of how many C5's are remaining and came up with a formula using an average attrition rate of 2.5%. Based on some factors the numbers may be higher or lower for a Corvette, especially the C4 ZR-1.
Many collectors were expecting the ZR-1 in 1990 and were given advanced notice of the last year of production for 1995. It could have been very reasonable to consider buying the car as an investment and not driving them often. I now see a lot of low mileage cars that have been for sale when I see them. Using this methodology, what do you think of the numbers below? Do you think there are more or less cars based on the "statistics" of what should be a normal attrition rate? What about the collector aspect? Here is the formula In 1990 there were 3032 made (0.975 ^ 32 = 44%) so 3032 *.44 = 1334 remaining... Repeated below.... 1991 2044 (0.975 ^ 31 = 46%) = 940 1992 502 (0.975 ^ 30 = 47%) = 236 1993 448 (0.975 ^ 29 = 48%) = 215 1994 448 (0.975 ^ 28 = 49%) = 220 1995 448 (0.975 ^ 27 = 50%) = 224 Total Remaining = 3169 +/- 10%? |
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#2 |
![]() Join Date: Jul 2017
Location: West Chester, PA
Posts: 378
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Probably a decent ballpark number to start with.
Somewhere along the line I'd think the 2.5% attrition goes out the window as a reliable number for a unique car like the ZR-1, but who knows. Surprised no one really tracks this kind of stuff, other than possibly insurance companies as mentioned in the video.
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1990 Black/Black ZR-1 #1155 1993 White/Red coupe (Regrettably sold) ![]() |
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#3 |
![]() ![]() ![]() Join Date: May 2007
Location: Peoria, AZ
Posts: 9,154
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I bet there are less than 4K left due to accidents, floods, fires, natural disasters, thefts, exports to the beyond etc. etc.
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director ![]() 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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#4 |
Join Date: Oct 2004
Location: Folsom CA
Posts: 1,648
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There used to be a spread sheet on the ZR-1 Registry website that tracked known lost ZR-1's, but it was removed some years ago.
I still have a copy somewhere in my archives. But more to the point, ZR-1's don't get driven as much as regular cars so I'd expect that the attrition rate is much smaller than standard cars. I'd be willing to bet there a lot more ZR-1's still surviving that the statistics would predict. It always amazes me how many 0 mile cars seem to pop up on eBay, there was a stupid amount of Z's that were bought and squirreled away. 'Crabs
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TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B] |
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#5 |
![]() Join Date: Nov 2021
Location: Mokena, IL
Posts: 78
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I think there have been many "protected/stored" cars, especially 90's and 95's. Seeing these super low mileage examples are really special for the history.
But we all know how fantastic this car was on the track. While special, there were plenty willing to push these cars to their limits and beyond which may also play a factor into cars lost. Something to think about as we drive our cars. I bought mine to drive and enjoy but it's crazy to realize that there could be less than 50% of Z's still around. Car shows, gas stations, etc. there is always someone amazed to see it there. Just like I am... |
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#6 | |
![]() ![]() Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,794
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#7 |
![]() Join Date: Sep 2008
Location: Mullica Hill, New Jersey
Posts: 2,574
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So I guess this Thanksgiving we need to also be thankful for:
1- climate change and polluters that add to it like elites in jets going to save the earth conferences and politicians paying $20 billion in (reparations?). 2- crummy and inattentive drivers 3- race car floggers Each contribute in their own special way to the rarity of our ZR-1's, thus increasing the value of our cars. My dinner guests Thursday may be confused when I say grace................... Have a Happy(er) Thanksgiving! ![]() Marty |
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#8 |
![]() Join Date: Nov 2021
Location: Mokena, IL
Posts: 78
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#9 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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I did the math on this years ago based on collectable vehicle data... remember the Z was not driven as a daily like a C5....
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#10 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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http://www.zr1.net/forum/showthread.php?p=146693
You only see 6-10 Zs a year at the salvage yards tops.... so the attrition rate is low vs other models
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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