Will 215 60 15 fit a Chevy Cobalt?

No, a 215/60/15 tire is too tall for a Chevy Cobalt. The Cobalt typically uses a smaller diameter tire, usually in the 195/65/15 or 205/55/15 range. Using a significantly larger tire like a 215/60/15 will affect your speedometer accuracy, potentially cause rubbing on the wheel wells, and may impact your car's handling and transmission.