hi becky,
I am an 18 year old high school student- I have a 325xi steptronic- it's 0-0 is something like 8.8 seconds which seems slow on paper, but i assure you that it is fast enough even for me, even racing my friends for fun that have sports cars like mustangs. the 325i should be fast enough for you unless you do a lot of drag racing or something
frank