If you're thinking about a quick estate and want something rare, how about a Nissan Stagea ?
Skyline GTR 4wd running gear and quite rare as well as reasonable money for an older model.
Mine is highly modded and very rare in this spec as well as out of your budget. But they are about ranging in price from 2k for a series 1 to 5k for a series 2. Std 240-280bhp. Mine on its last dyno 371bhp.
