Not having enough money presents its own problems for sure. But yes, the Zcars are reliable, fast cars, that can be competitive if driven and prepared right. Putting a turbo on an engine that didnt have one from the factory puts you into a different class, and unless you go all out, you wont do too well. Parts are easy to get since the Z and 510 have been competitive and in demand since they came out. But the money thing can prevent you from doing much in ITS. You also have the added cost of repairs from hitting other things. You are, after all, on the track with many other drivers and drivers will make mistakes. If you dont have a whole lot of money to throw at a car, then try autocrossing to get a taste of what it can be like. Its extremely cheaper, and will give you less headaches. Autocross clubs also sponsor events at road courses a couple times a year to let you get a taste of faster fun. They usually run Sat and Sun, and cost less than $200.