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11062007, 08:38 AM  #67 
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Thanks for the post and the reference sdiver.
Nissan should clarify what they mean by stock in this case since everybody kind of knows that there will be different versions of this car (people on that Nissan board are saying the same thing). Why don't they simply release the specs of the car that made the run? Or did they do that already and have I missed it? 
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11062007, 08:47 AM  #68 
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Residual Stats
Here are the descriptive stats on the residuals from the second analysis. I think Swamp and Coaster asked for these. The distribution is pretty even. Not exactly a normal distribution, but pretty close.

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11062007, 10:10 AM  #69  
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11062007, 10:44 AM  #70  
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Swamp, just curious... where does the 135i fall into that chart @ 198lbs lighter than a 335i..? Near the Cayman S..? 

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11062007, 10:44 AM  #71 
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Is there not to be more than just one model. I thought there was 3 versions coming with the top producing over 520hp.

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11062007, 10:55 AM  #72 
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When on earth is the M3's time going to be made official?
Anyone. 
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11062007, 11:04 AM  #73 
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11062007, 11:05 AM  #74 
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So, we are talking about the 3800lb 480hp version?

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11062007, 11:09 AM  #75  
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Bravo! 

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11062007, 11:22 AM  #76  
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No, because that scenario you just described (say better tyres) only alters that regression table in a single vector. Which is clearly stated by Swamp & Co. Tyres don't add HP or weight. So you'd see that VARIANCE plotted as TIME! 

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11062007, 11:38 AM  #77 
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Kind off topic yet not: how do they handle liability issues on the Ring? I don't know much about what one needs to do to drive, but it seems like you pay the fee and you're on. Is that right?

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11062007, 11:41 AM  #79 
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11062007, 11:44 AM  #81 
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11062007, 11:49 AM  #83 
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If you are interested the video of the lap is on Youtube.
Here's the link 
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11062007, 11:56 AM  #84  
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So if we can eventually compare an M3 DCT to the GTR DCT, on the same tires, then we could see how much better the GTR's awd, suspension, etc is compared to the M3... So if we guess the M3 DCT time is 7:50 GTR is 7:38 Then there is a 12 sec difference 6 seconds are gained because the GTR has superior kg/hp ratio ('known' via regression) Other 6 seconds are gained because? suspension, awd, balance, driver, etc 

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11062007, 12:12 PM  #86  
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I agree with the 6 seconds being gained by the superior kg/hp ratio but the rest (13~14 seconds if the DCT M3 does as I believe a 7:58 lap) will be made up by this amazing transmission/suspension/steering setup that Nissan has blessed the GTR with. The M3 is good but it's not in the same class as the GTR is in terms of handling and balance. I think swamp2 described it best saying Nissan has rewritten the book on how a sportscar should perform. 

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11062007, 12:14 PM  #87 
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11062007, 12:18 PM  #88 
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It's not just DCT. I also said stellar driver (Nissan seems to have one). Driver can make a significant difference. If I remember correctly, the #2 Nissan test driver was said to be running 1015 sec slower than the #1 guy.

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