Motor Trend - C8 vs 911 comparison test
10-22-2019, 10:12 PM
#121
Yet this is all anyone’s got when it comes to barely consistent 991 fit/finish issues. A door card glitch that was handled by dealers as a goodwill fix for any 991. Mine didn’t even warp and they changed it to be sure.
the C8’s inherent and trim panel gaps are so drastic that in a 911 you’d consider it a warranty item.
Exactly. And look no further than the C8’s lousy 15K torsional rigidity figure. Worse than a 2014 Chevy Cruz and about any other car you can buy today. Sure, it has a targa top, but that “excuse” isn’t valid when you’re forced with said top, no hardtop option, and stuck with all the extra eight it brings to boot.
The 992’s torsional rigidity is over 42K as the 991’s was already over 40K in itself.
Talking other planets here when it comes to structural integrity. Aside from all the bolts, the C8s floor pan is partially plastic. Don’t have to look too deep to find where the “value” comes from.
the C8’s inherent and trim panel gaps are so drastic that in a 911 you’d consider it a warranty item.
^^^^Have you seen a cut away of the C8 - it uses a bolt together construction method - this will not last. Also, the types of steels in the main components are quite different. Go and put a custom built cage into a modern Porsche - you will always get the same feedback e.g. built like tanks (due to the use a very high qaulity steels in key structural members).
The 992’s torsional rigidity is over 42K as the 991’s was already over 40K in itself.
Talking other planets here when it comes to structural integrity. Aside from all the bolts, the C8s floor pan is partially plastic. Don’t have to look too deep to find where the “value” comes from.
10-22-2019, 10:30 PM
#122
Intermediate
10-22-2019, 10:55 PM
#123
I don't think c8 torsional rigidity data is available. GM press release had stated a 19% increase in torsional rigidity compared to C7. Published rigidity on the c7 is 14.5k Nm/deg.
http://youwheel.com/home/2016/06/20/...ehensive-list/
C8 is a Targa, so the 991 Targa is a better comparison. A 991 Cab is about 12k.
For a street driven car, one can argue these numbers are not meaningful above a certain level of rigidity.
http://youwheel.com/home/2016/06/20/...ehensive-list/
C8 is a Targa, so the 991 Targa is a better comparison. A 991 Cab is about 12k.
For a street driven car, one can argue these numbers are not meaningful above a certain level of rigidity.
10-23-2019, 01:15 AM
#124
I don't think c8 torsional rigidity data is available. GM press release had stated a 19% increase in torsional rigidity compared to C7. Published rigidity on the c7 is 14.5k Nm/deg.
http://youwheel.com/home/2016/06/20/...ehensive-list/
C8 is a Targa, so the 991 Targa is a better comparison. A 991 Cab is about 12k.
For a street driven car, one can argue these numbers are not meaningful above a certain level of rigidity.
http://youwheel.com/home/2016/06/20/...ehensive-list/
C8 is a Targa, so the 991 Targa is a better comparison. A 991 Cab is about 12k.
For a street driven car, one can argue these numbers are not meaningful above a certain level of rigidity.
I think it was Matt Farah that was comparing the C8 to a Ferrari or McLaren and yet it won't even be close. Although I did note Motortrend tried to spin it using its Figure 8 test results - which reflect a combination of power and handling.
https://www.motortrend.com/news/2020...-amazing-cars/
For perspective the 718 Spyder does it .3s quicker than the C8 Z06 and current benchmark mid-engined cars are 1s or more quicker.
Last edited by groundhog; 10-23-2019 at 01:32 AM.
10-23-2019, 03:38 AM
#125
Yes but thats still a long way from a Cayman, Boxster, Carrera Coupe, GT Car - torsional rigidity is a key component on allowing the suspension to work effectively.
I think it was Matt Farah that was comparing the C8 to a Ferrari or McLaren and yet it won't even be close. Although I did note Motortrend tried to spin it using its Figure 8 test results - which reflect a combination of power and handling.
https://www.motortrend.com/news/2020...-amazing-cars/
For perspective the 718 Spyder does it .3s quicker than the C8 Z06 and current benchmark mid-engined cars are 1s or more quicker.
I think it was Matt Farah that was comparing the C8 to a Ferrari or McLaren and yet it won't even be close. Although I did note Motortrend tried to spin it using its Figure 8 test results - which reflect a combination of power and handling.
https://www.motortrend.com/news/2020...-amazing-cars/
For perspective the 718 Spyder does it .3s quicker than the C8 Z06 and current benchmark mid-engined cars are 1s or more quicker.
10-23-2019, 04:39 AM
#126
Not to mention, all C8 reviewers are regurgitating the exact same talking point sound bites in how they describe the car. Clearly GM is on a $$$$pending spree to award this car “victories” it doesn’t deserve. “Car of the year” no doubt will be one, when it clearly is not. This thing is no “Ferrari and Lamborghini” league to say the least, despite reviewers parroting that corporate fed line.
I can only think it represents a series of compromises forced by a largely predefined price point. If it you judge it soley through those optics then its good but not great which is pretty much where Jason Cammisa landed in his review.
10-23-2019, 08:00 AM
#127
Yes but thats still a long way from a Cayman, Boxster, Carrera Coupe, GT Car - torsional rigidity is a key component on allowing the suspension to work effectively.
I think it was Matt Farah that was comparing the C8 to a Ferrari or McLaren and yet it won't even be close. Although I did note Motortrend tried to spin it using its Figure 8 test results - which reflect a combination of power and handling.
https://www.motortrend.com/news/2020...-amazing-cars/
For perspective the 718 Spyder does it .3s quicker than the C8 Z06 and current benchmark mid-engined cars are 1s or more quicker.
I think it was Matt Farah that was comparing the C8 to a Ferrari or McLaren and yet it won't even be close. Although I did note Motortrend tried to spin it using its Figure 8 test results - which reflect a combination of power and handling.
https://www.motortrend.com/news/2020...-amazing-cars/
For perspective the 718 Spyder does it .3s quicker than the C8 Z06 and current benchmark mid-engined cars are 1s or more quicker.
The point is that the TR numbers, to be fairly compared, would need to be with a true Corvette coupe and not a Targa. I’m assuming the z06/ZR-1 will be fixed roof coupes. Those numbers should be much better.
Not to mention, all C8 reviewers are regurgitating the exact same talking point sound bites in how they describe the car. Clearly GM is on a $$$$pending spree to award this car “victories” it doesn’t deserve. “Car of the year” no doubt will be one, when it clearly is not. This thing is no “Ferrari and Lamborghini” league to say the least, despite reviewers parroting that corporate fed line.
Remember this one?
10-23-2019, 08:07 AM
#128
Good one - its even brown, seems appropriate for the car in the photo 
Thankfully the C8 is in a much better company.
Thankfully the C8 is in a much better company.
Last edited by groundhog; 10-23-2019 at 08:24 AM.
10-23-2019, 08:18 AM
#129
Rennlist Member
I don't pass judgement on anyone who is interested in the C8. It will be a great value performance car. It will also push those above, Porsche included, to stay on their and raise it.
Too many brands think once they are at the top it's ok to enjoy the euphoria. Not the case as you have to run every day like the devil himself is chasing you. Cars like this make every other brand better. Seeing buyers jump ship or look at vehicles that they may never had before is sobering for premium brands and keeps them awake.
To those that take the C8 plunge, good luck and enjoy the new ride.
Too many brands think once they are at the top it's ok to enjoy the euphoria. Not the case as you have to run every day like the devil himself is chasing you. Cars like this make every other brand better. Seeing buyers jump ship or look at vehicles that they may never had before is sobering for premium brands and keeps them awake.
To those that take the C8 plunge, good luck and enjoy the new ride.
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G650 (10-23-2019)
10-23-2019, 08:46 AM
#130
RL Community Team
Rennlist Member
Rennlist Member
It’s a sub 100k mid engine GT.
Thats all it is.
It’s not a Lamborghini.
It’s not a Ferrari.
Its not a Porsche.
Comparing the C8 to any of those cars does a disservice to both the C8 and the Lambos, F cars and Porsche’s.
Thats all it is.
It’s not a Lamborghini.
It’s not a Ferrari.
Its not a Porsche.
Comparing the C8 to any of those cars does a disservice to both the C8 and the Lambos, F cars and Porsche’s.
10-23-2019, 09:43 AM
#131
True - however thats what the motoring journos are doing.
10-23-2019, 11:39 AM
#132
Three Wheelin'
10-23-2019, 12:58 PM
#133
RL Community Team
Rennlist Member
Rennlist Member
Thread Starter
Wake me up when the Chevrolet delivers a Corvette street car with the high revving DOHC flat plane crank V8 of C8R. It sounds and revs like a Ferrari, which also uses a flat plane crank V8 and revs to the sky.
The low revving lazy V8 of the base model C8 car just isn't delivering the "goods" yet.
The low revving lazy V8 of the base model C8 car just isn't delivering the "goods" yet.
10-23-2019, 02:44 PM
#134
Pro
But have you ever visited the "Existential Thread" in the Taycan forum - it's a major trainwreck
So yes, ideally cars that are in different price points and offer quite different customer experiences shouldn't be compared, but as stated, headlines are what sells, so that's what we get.
10-23-2019, 03:36 PM
#135
992 Carerra S is running 0-60 in 2.9? Very impressive. Isn’t that the same 0-60 time as a .2 GT3RS? Can someone explain how Porsche did this with more weight and less HP?
I’m guessing it’s from the extra torque from the turbos compared to RS’ lower torque figure?
I’m guessing it’s from the extra torque from the turbos compared to RS’ lower torque figure?
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992Sam (10-23-2019)