NASCAR fans are taking over Coronado Island for the weekend.Some fans chose to keep it low-key Friday night, skipping opening day at the track and trading it for rooftop views.At Dive, the only rooftop bar in Coronado inside The Bower Hotel, fans grabbed drinks, soaked in the views, and saved some energy before a big weekend of racing.Sean Murphy, General Manager of The Bower, said the event has been a boost for the property."Our hotel is fortun…