C7 build quality question
Considering getting a used C7 Z51 as my next vehicle. How does the build quality compare to past Corvettes? I've searched some threads here and read publications, and I've gotten conflicting info. Initially the publications praised the C7 interior vs the C6, but I'm not sure if they're simply referring to the materials used or to the actual quality of assembly.
Most C6's I've been in sound very "crashy" inside when the driver goes over cracks and bumps in the road, and I don't think I could justify spending 40k + on a used C7 Z51 if that's still the case - it would make the car feel cheap and ruin the ownership experience for me. I've been in a buddy's Mustang (with their stiff suspension option and lowering springs) and when you go over bumps in the road, nothing inside rattles or makes noise - all of the noise stays outside the car and you simply hear the "thump thump" as you go over the bumps. It feels very solid and it's very confidence inspiring.
Any input here is appreciated. Specifically looking for C7 interior noise and how solid the car feels, especially over bad roads as I live in Pittsburgh and the roads here suck.
Thanks!
Joe
Seats are better built.
No odd creaks or groans.
Road noise is a touch high but that's the sticky tires.
Get a car with mrcs...
Sounds like you have not been in a c7... Go drive a few.
Michelin all season tires. Some say that the non-run flats ride a bit nicer but I will go with the run flats.
Crazy Cowboy's sound deadening ($450 plus a day of your time).
For older C7's, suspension software upgrade ($350 at dealership).
You can research all 3 of these topics here on the forum.
Also, I have heard that the convertible is quieter than the coupe, but I have only been in a coupe for about 3 miles.
I did have a rattle in the driver's side dash vent that was replaced by a dealer.
1. Interior quality is fantastic other than the center console lid wrinkling 2X.
2. Exterior quality is average... panel alignment is poor on some cars. I adjusted all mine in tolerance, but unfortunate I had to do it at all.
3. Exterior paint is poor on some early cars, but my 2014 was no worse orange peel wise than any of my 4 C5s. The later new paint shop cars have much better paint as they robotically sand all panels and then use a totally new paint shop with all new equipment and process.
4. The lingering issue is paint peeling at the bumper edges... even new 2019s have it. It's more prevalent on the front bumper where the bumper meets the fender on each side of the head light. It's bad panel prep... somewhere in the process all the mold release agent isn't getting removed from the part. The parts rub and the paint flakes off. Disappointing GM hasn't fixed it 100% over the life of the C7. I have a deposit on a C8 and hope I can depend on the paint to stay on the car. You'll see some on here incorrectly say it's due to joint tightness between the bumper/fender, but the C5 and C6 had tight panel joints there and I have never seen one with the paint flaking off. Paint flaking off is always an adhesion issue and not a wear issue.
Last edited by RapidC84B; Jun 3, 2019 at 10:41 AM.
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I agree with everything you said but have not heard of any new paint shop 2018 or 2019 having this problem. It is due to poor paint prep and seems to be associated with 2017s and 2018s painted in the old paint shop, just before the factory shut down for their $1B modernization. Do you specifically know of anyone who has had paint flaking between the front fenders and the bumper with the new paint shop? If so, then GM wasted $400M and it seems that there would be firings.
I agree with everything you said but have not heard of any new paint shop 2018 or 2019 having this problem. It is due to poor paint prep and seems to be associated with 2017s and 2018s painted in the old paint shop, just before the factory shut down for their $1B modernization. Do you specifically know of anyone who has had paint flaking between the front fenders and the bumper with the new paint shop? If so, then GM wasted $400M and it seems that there would be firings.
https://www.corvetteforum.com/forums...nt-defect.html
https://www.corvetteforum.com/forums...e-repairs.html
Last edited by joemessman; Jun 3, 2019 at 11:06 AM.
Then go drive several USED models/variations C7s.
Then make up your own mind about them.
My new C3 was mechanically and ride perfect. No creaks or any rattling. The interior was perfect too.
The fit of one body panel, and one area of paint were the only shortcomings the car had.
My new 2017 C7 Stingray convertible's construction is damn near perfect in every way.
Last edited by Skid Row Joe; Jun 3, 2019 at 11:11 AM.
I agree with everything you said but have not heard of any new paint shop 2018 or 2019 having this problem. It is due to poor paint prep and seems to be associated with 2017s and 2018s painted in the old paint shop, just before the factory shut down for their $1B modernization. Do you specifically know of anyone who has had paint flaking between the front fenders and the bumper with the new paint shop? If so, then GM wasted $400M and it seems that there would be firings.
https://www.corvetteforum.com/forums...nt-defect.html
https://www.corvetteforum.com/forums...e-repairs.html
https://www.corvetteforum.com/forums...nt-defect.html
https://www.corvetteforum.com/forums...e-repairs.html
That really stinks and heads should roll.
It really is not due to rubbing as many think, but to poor paint prep on the edges. The seam where this is happening is a fixed seam where the panels are flush against each other when installed properly. Moving seams like the hood, hatch and doors obviously should have gap and should not rub against each other. Thus it is not a design issue and it is wrong to perceive one will have a problem because panels abut each other without a gap
My production number was number 325 after the plant renovation and hopefully they were still spending extra time to make sure panels were properly prepped before painting
Last edited by Frosty; Jun 3, 2019 at 11:48 AM.
What's a vette like on a road like that? I have the widest tires: 285/30/19, and 335/25/20 cup2 michelins, designed for billiard table smooth tracks. 1 handed driving on a billiard table at speed. On pa i81 it was two fisted and my wife thinking i'm drunk as that vette darted from side to side of its own accord reacting to the varying heights and slopes of the patches applied to the base pavement. in some areas out of towns they put grooved strips across the road for no apparent reason except to make the Vette go BUMP BUMP every couple hundred feat. Extremely irritating.
I have the MRC. Suspension set for tour mode on both vettes. My wife noticed and I concur the new Z07 Suspension was softer riding than my old z51 MRC suspension with the.software update! Probably due to the softer rubber of the Cup2's. Both cars are verts and were tight as a drum. If you ever had sixties verts and experienced cowl shake you will be amazed, no chassis flex at all.
The elephant in the room. I mentioned the dreaded wheel crack and bend isssue that especially afflicts wide-body vettes. The forum consensus is to blame cheap old gm. Well, also blame BMW and Mercedes which have the same bending alloy rims. What gives? Well BMW and Mercedes are designed for table top smooth high speed autobahns; the Germans would not allow their highways to degrade to the same conditions that the American politicians in Washington have allowed our Federal highways to disintegrate to. Instead American politicians use the smoke and mirrors of impeach theatrics to divert taxpayers attention away from the fact that our Federal funding to maintain us roads and bridges has been diverted away to each representatives favorite pork barrel project for their district. DC bureaucrats can sure expand i95 to sixteen lanes of perfect asphalt in each direction far enough to get them home to their McMansions! So blame GM if you must; but also complain to your elected represntatives and tell them if they don't fix the ****** roads, YOU WILL FIX THEM come election day. Sorry for the soapbox, but if the roads are not fixed soon, all that will be able to navigate them will be Eisenhower's plan for deuce and a halfs travelling in convoys.
Or worse, states declaring eminent domain and placing toll booths on all of them!
To answer your question: if Pittsburgh roads are as bad as PA I81, and you don't plan to haul a vette to a track to enjoy as it was designed; i would not buy a vette, i'd buy a Raptor.
Last edited by SilverGhost; Jun 3, 2019 at 11:57 AM.
I agree with everything you said but have not heard of any new paint shop 2018 or 2019 having this problem. It is due to poor paint prep and seems to be associated with 2017s and 2018s painted in the old paint shop, just before the factory shut down for their $1B modernization. Do you specifically know of anyone who has had paint flaking between the front fenders and the bumper with the new paint shop? If so, then GM wasted $400M and it seems that there would be firings.
puts my response into a bit more limited category. Having said that the C7 is simply that much better; I had glove box door locks
just fall apart, C5 had the key insert plastic surround just collapse into pieces and other minor failures of an appearance nature.
Much more solid feel to C7 and so far none of the squeaks and rattles that older Vettes are "famous" for.


















