As said above, the V50's are not massive, maybe a V70 would be the right size for you ? on the used pre 2008 market they cost around the same price.
What year you thinking ?? if you are going older, try and get a pre dpf one, ideally in sports spec if your going done the oil burner route.
The 2.4 petrol is not that quick and does like a drink if you go down the petrol route... but you have the option or the 1.8, 2/0 and T5..
I nearly purchased one and spent a lot of time looking into them.
Dont rule out a E46 or E39 touring... B6/B7 A4