Actually
Thats such rubbish, if a person buys a car, or a house etc they need:
1) the capital to buy it,
2) the capital to run it.
Is it such a weird question to ask that if:
1) they have enough money to buy it then
2) how much money they "should" have to keep it!?
A sure indicator would be a new purchase due for delivery, so really i think most of the above comments are just a bit facetious when i was asking a fairly resonable question considering at the moment i'm not in the inustry.