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It's a super impressive time, but I wanna say C&D admitted they used the wrong driver aid settings when they set that 765 lap. I'd wager that if you put the same tires on even the 720S it would be a couple of seconds ahead of the C8Z, and the 765 would be another few seconds up the road.

All that said, the C8 Z06 is a great achievement and GM has done a great job of raising the bar with each generation of the Corvette. One can only imagine what the ZR1 will be able to do.
 

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On Cup 2R I would assume. Otherwise known as the tire that skews all lap time comparisons.
lap time was from two years ago and a factory car with factory driver .

jeff drove stock 765 and was five seconds faster and 3 seconds faster in 720 spider then pobst in the corvette at laguna .
 

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Pobst was driving the C8 Z06? Interesting...
At laguna pobst was driving the corvette. From what I remember, everyone was disappointed in his corvette laguna time and the vir lap time sort of validated the car (im Just going from memory )
 

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"
Challenge with C4 Corvette

Warren Mosler was so confident in the performance of the GTP that he offered a $25,000 bounty to anyone who could pilot a street-legal production car around any U.S. racetrack faster than his car. Car and Driver took up the challenge, racing a 1988 Consulier GTP Series I Sport against a stock 1991 Chevrolet Corvette around the Chrysler proving grounds test track in Chelsea, Michigan. Arthur St. Antoine and Csaba Csere took three laps each in the Corvette and the GTP. They were able to obtain a best lap of 1:21.01 in the Corvette versus the GTP's best of 1:22.56. Reviewer St. Antoine opined that the GTP was "difficult to handle" with "anemic brakes".
When Car and Driver confronted Mosler with these results prior to publication, Mosler noted that the test car was three years old and worn out due to heavy use: the GTP obtained by Car and Driver was borrowed from a Track Time driver's school: it had worn tires and brake pads, no interior trim, and three cigarette lighters which were specially installed so Track Time could plug in their computer and portable radio equipment. Mosler offered to rerun the test using his company test driver and after installing new brake pads in the GTP, and agreed to pay the $25,000 if the GTP still didn't lap faster than the Corvette. Car and Driver refused, saying it might be faster because of the new driver. Mosler responded that they could use any driver they wanted for their car, but to have them drive the GTP and get paid if it lost due to a conflict of interest. Car and Driver subsequently published the Consulier GTP road test article in a negative and sarcastic light, where they ridiculed the borrowed car's lack of interior fit and finish and the three lighter plugs (failing to mention these were modifications made by the driving school), and compared the overall fit and finish negatively with a new Nissan 300ZX. They also claimed that Mosler defaulted on his promise. Supporting Mosler's position that the GTP should have won was the 1991 auto race in Lime Rock Park, with a Series II Consulier GTP. This car defeated Hurley Haywood's factory Porsche 911 Turbo, Boris Said's Callaway Twin Turbo Corvette, and Jim Minnaker's factory ZR1 Corvette; the race would be the GTP's last before it was banned from the IMSA series. To further back up his statements, Mosler raised the challenge to $100,000, however no production car was able to best the Series II Consulier GTP; it has been claimed that Chet Fillip bested the GTP, however he was in a modified RUF Porsche GT1 with racing slicks during his run at the Sebring International Raceway.
"

Car and Driver has historically been extremely objective when evaluating cars from the Detroit cabal
 
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