Why did Buds heart start jumping when he looked into Mr.Lewiss car?

Buds heart started jumping when he looked into Mr. Lewis's car because he was filled with a mix of excitement and anxiety. He likely felt a strong connection to the car, which represented freedom and adventure, yet also apprehension about crossing boundaries. This emotional reaction highlights the significance of the car in Bud's life and his yearning for something greater. The moment reflects both his hopes and fears as he navigates his circumstances.