2001 Solara hit deer in front and hood is only slightly bent and plastic grill slightly cracked but car won't turn over.?

It sounds like the deer impact may have caused damage to the electrical or fuel systems, which could prevent the car from turning over. Check the battery connections and fuses, as they might have been affected by the collision. Additionally, inspect for any hidden damage to wiring or components that could hinder the starting process. If everything appears intact, it might be best to have a mechanic diagnose the issue.