I am sure this question has been asked a million times!! Right now, I have the RA (still in box and I have the receipt!). I am afraid my son will reach the 40 lb weight limit before he reaches 4 yrs so i am off to BRU today to exchange it for another Britax... Which should I get, the DC, MA or BV??? What are the pros/cons to each. We have 2 suv's (4runner and pathfinder) and i would assume those seats would fit in our cars. Please help!!!! I don't want to make another car seat buying mistake when i go today!!!