to live in Tokyo, Tokyo? AND own a car?! Its a little impractical, you'll find the train system very efficent. My best advice is to live a little outside of Tokyo possibly in Chiba or Kanagawa if you want to own a car in Japan. Then you can have the best of both worlds.
So as far as Rent goes, it just depends on what type of place you want to have. In Tokyo you could probably get a small apartment for about 8万 a month, plus about another 3 or 4万 for utilities (ie, phone, internet, heat, water, etc, etc..)
Food.. um.. could probably get by on 2 or 3万 a month for 1 person.
and now for the car, I just know about R32s since thats what I have, i'm sure prices are more expensive for the 33s and 34s.
Car should run you close to or over 100万, that's for finding one in good condition with no accidents, plus new shakken (shakken will cost you about 30 to 40万 every two years or so) , etc, all that good jazz. I got a good deal on insurance, but my friends end up paying about about 4-5万 a month, but their motors are only a little under 2000cc. It's fairly cheap to buy a car here, but owning and maintaining it gets expensive after a while.