Simplify the following text for a Grade 11 native English-speaking person.
Original: The circuit is also home to the BRDC International Trophy , formerly one of the premier non-Championship F1 races in the calendar , today awarded to the winner of a race for historic F1 cars at the annual Silverstone Classic meeting .
Simplified: The circuit is also home to the BRDC International Trophy , awarded to the winner of a race for historic F1 cars at the annual Silverstone Classic meeting .