MEET the youngest female monster truck driver in America who started racing when she was a teenager. Rosalee has been driving monster trucks professionally since she was just 14. She is known as the youngest professional female monster truck driver in the United States. Rosalee’s truck, Wild Flower, is a 1932 Ford Coupe monster truck with 66 inch tall tyres, weighing approximately 600-800lbs each, boasting 15-16 horsepower and decorated with pink roses.