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Current rumours point towards a "Rallye Edition" as the circuit pack equivalent. What that will include is up in the air obviously as we don't even know for sure if we are getting that edition/pack. I'd say it's very likely to have some sort of performance package equivalent since basically the entire package can be transferred over. Unless the GRC came stock with the circuit pack upgrades which I highly doubt. Considering it's the same drivetrain and brakes and that's all the circuit pack really changes, I'm sure they'll offer it as it's not as much money to do so since the parts already exist and fit
Current rumours point towards a "Rallye Edition" as the circuit pack equivalent. What that will include is up in the air obviously as we don't even know for sure if we are getting that edition/pack. I'd say it's very likely to have some sort of performance package equivalent since basically the entire package can be transferred over. Unless the GRC came stock with the circuit pack upgrades which I highly doubt. Considering it's the same drivetrain and brakes and that's all the circuit pack really changes, I'm sure they'll offer it as it's not as much money to do so since the parts already exist and fit