As the others have alluded to, the VX takes a certain level of commitment. I've owned my VX since new, and have had very few mechanical issues. But, with 135,000 miles there have been a few failures - idler pulley disintegrating, dirty MAF sensor CEL, tires and batteries, etc. This varies from vehicle to vehicle, and depends a lot on the care and maintenance it has received through it's life. Unless you know the history of the car, you need to assume the worst and expect some repairs to be required. You should check to make sure it isn't a rusty, dripping pile of poop, and then go from there. Make sure you have the option to return it if it turns out to be junk. (I know, they are all sold AS-IS, but the dealership has to be honest about what they are selling.)

Bottom line... If you have ANY doubts... walk away.