This has been discussed before - I'm an Aerospace Systems engineer on the MEng, and my offer was AAB. However I take exactly the same classes as students who entered on the BEng, and the BSc(Eng) with offers like CCD.
You mustn't forget that in the first year, the course is very general and we take the same lectures, so consider applying for a BEng or BSc(Eng). Provided you get a high enough pass in your summer exams you can change to a higher qualification in the next year.
Remember also that at QM, Engineering is a course that always has free places right through Extra, Clearing... up until a few days before the course starts if I remember correctly. Do not panic, you will have a place.