Sure, here's how you can get to the circuit using public transport:
By Bus
Stagecoach runs local bus services that drop you off close to the circuit entrance. Check their website for current timetables.
By Train
The nearest station is Wolverton, about 10 miles (16km) away. It offers direct trains to London Euston and Birmingham New Street. Other nearby stations include Banbury, Milton Keynes and Northampton, all within 13 miles (20km).
By Taxi
There are various local taxi companies that can pick up and drop off at the circuit. Call 01280 701111 (Brackley), 01908 222111 (Milton Keynes) or 01604 222111 (Northampton) to book.