Hi. My mom is looking at buying an Aston Martin DB9 but we wanted to know how much leg room is there in the back? And performance wise, how would this compare to a Mercedes-Benz CLS 55 AMG? Thank you!

the answer for the room in the back is,"NOT MUCH" now for the mercedes-benz and DB9 i like the DB9 better in profromance. hope this helps.

He's right. The leg room is good for front sets but not for rear ones. Both of the cars (Merc. CLS & AM DB9) are good.