Pretty much for 6 or 7 you'll be getting a low end 91-92 BMW 318 that is in poor condition and is sporting 15" Hubbys. And dont expect next to any 320's for under $8000 - thats ridiculous. As far as I'm concerned, my parents have been pressuring me to buy an E36 over an E30, not dising any E36 owners, but the crap you get for around 6 - 8 grand just aint good. Dont go out and buy a cheapie just because its a BMW. Owning a BMW is something to take pride in and be proud of, seeing people who dont appreciate beamers not taking care of there cars, is just, demoralising, buy a car you can be proud of - you get what you spend basically is what I'm trying to say, buy quality not based intirely upon price - spend that extra bit if you have to.
For between 7-10 you'll be looking at the crap - average good condition 318 - 325i 1993 - 1994. Or you'll find something newer than that but with higher km's of about 180k onward.
Between 10-12 you'll start to find the 1993 - 1995 BMW 318iS 's
For between 12 - 20 you'll find a range of cars from Pieces of SH*T to styly 318 - 325 maybe even a few 328's.
At 19-20k your just boardering on the like of getting a cheapy E46.
If your looking to buy a nice E36 I suggest you looking at spending at least $10 - 20k, look at 94-98 models up and keep in mind you may need an extra grand to service it once you get it. These ones are where they generally begin to have body kits and nice mags - if that is what your looking for. They usually are in good nick and have leather interior. You will find what your looking for in this section because theres just so many to chose from.
Make sure to keep an extra $120+gst handy before you purchase and take it into a BMW Registered Service Centre for a complete pre-purchase inspection, this way you'll know whether your buying a shitty car thats been done up to look nice, or a real minter.
If you think your've found a nice Black E36'er for under $7 I'd say its most likely too good to be true.
Your closest match so far is this grunter, http://www.trademe.co.nz/Trade-Me-Motors/C...on-22599155.htm - beside the fact that the start price is not within 15% of the reserve so it wont be going for any less than - $8625. In regards to its condition, it looks good, needs a clean - obvious owner doesnt take that extra bit of care of it, its got reasonable KM's for its age - but are they believable I mean only 7,500 km a year ? , early 90's version I've been told to steer clear of as this is the newer stage of the E36 before they ironed out any of the technical problems, apparently they have small nigly problems that just keep on coming back to kick ya in the pants.
