How Much is a 1999 Shelby Series 1 Worth?

The 1999 Shelby Series 1 represents a specific production year with 5 documented auction sales in the past 12 months. This year prices align closely with the overall model median, reflecting its position within the model's production timeline. The median sale price of $145,000 places it at the broader Shelby Series 1 market average of $145,000. Values for this year range from $114,000 to $245,000, demonstrating substantial variation based on condition, mileage, and specific configuration.