David,
Can I ask a question that puts a different spin on your example: Had the ITA RX7 been classed as ITB, how would he have finished in ITB - would he have won? Been an overdog/track record for ITB?
Also, you stated that the RX7 was within 1.5 seconds of the CRX Si - was that CRX the race winner?

As with Dick, trying to understand the context of your example. Thanks!

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Dave Youngren
NER ITA RX7 #61