If you examine your citation issued in Illinois it lists all possible defenses available to you. In I recall correctly, one of the grounds is "the facts do not support alleged citation etc." Please review your defense grounds again. If there is enough evidence to raise prima facie defense based on mistakes within citation you may do so. However, some of them may be considered minor mistakes or discrepancies. e.g. Subaru AWD v. Subaru Forester. And yet, it is possible that a wrong car is cited with the ticket. Prepare your rebuttal, include photos as evidence and mail it within seven dates of the issued citation to the address provided.

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