What is a spec v?
As for the WRX if you are buying used be very careful and picky. These cars require tuning when modded (excepet for 02 - 03's), and a lot of people end up screwing their cars up.
Look for signs of modding. One easy check is a cut turbo heatshield. Search and you will find guides on what to look out for.
If you are buying new then don't worry too much because Subaru's are very reliable when stock. They are even reliable when modded smartly.