Agree with blacklineninja, Rust is very hard to treat unless the car is stripped and a bare metal respray/rust treatment is done. Although the car is nice it is unlikely to be regarded as a classic for quite some time. I spent a fortune on a car and finally had to sell it wasting the money I had spent. You get into a "well i've spent so much a little more and it should be finally sorted" philosophy which sadly is never true.
The Impreza would be a good tuning base - buy it enjoy the power for a year then mod it, thrash it for a couple of years and sell it just before it falls apart!
