I traveled to the Vic By car for last years GUKPT (from Newcastle ).
I promise you, you will never regret leaving the car at home.
Typical costing:
Fuel £70.00
Congestion charge £8.00 per day
Parking (NCP) £36.00 per day if you cant get into the Vic car park.
Hotel around £80 per night.
Mate traveled by coach, cost £22.00.
Fuel would probably cost a bit more now.