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that's an incredibly expensive machine to go up against Corvettes and 911 Cup cars... but, WC has a diverse field and great action, so good for him.
The R8 has a surprisingly low operating cost compared to other cars in the Grand Am field. I suspect the cost savings would be similar in World Challenge. If of course there is a World Challenge; a series which makes no sense to me when compared to Grand Am. Then again that is another conversation all together.