I have 1 spare ticket for the Mobil grandstand and a general entrance ticket. the stand is  now called "leonard" this is almost opposite the pits nearest the start finish line as far as I know.
this is due to a member of our party dropping out at the last minute due to work problems.
If you are interested, these cost £134 I will accept £70.
I am leaving Weds evening so if you are interested phone me on 07944013240 and can meet outside the main gates.