Really high compared to what? You didn’t say. If you’re currently driving a 2016 Lambourghini Huracan, no. If your current vehicle is a 1998 Dodge minivan, hell yes.
No matter what answer you get in here, you’re still going in blind. Nobody does estimates for Allstate in here, especially with so few details provided. All you said is 21 and Infiniti G37X, and that ain’t much.