Driven both...
IMHO opinion C63 is a much better DD. Much more TQ and way more comfortable albeit the gas mileage is a joke for a DD.
BMW M3 out handles the C63 in every way and on a track will mow it down. Much easier to drive at its limits as well.
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2jZ + RB26 + 4G63 + LS9 + N54 =
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