but your A-level predictions are 3A*s and if you perform very strongly on the entrance exam you may still get an interview, no doubt other areas of your application will have to be strong.
The only way to find out is too apply. Most people who average a B+/A- ie 7, dont get in, that said some still do. You get 5 applications, if you are really keen then apply give it a "roll of the dice"  but if it doesn't pan out you have 4 other applications, with 3A* predictions you will get offers from top unis.
1) RogerOxon (i really liked that analogy on the other thread, figured id cite)