Those are very expensive cars to repair and upgrade. Take a trip to your local drag strip and see how many S-2000s you see...you would be surprised to find even 1. There is a reason why.
They are however okay road racing cars, but again...they take a lot of money. Just a light bulb for the headlamp of that car is about $300
They are way overpriced for what you get though. For example a 2008 S2000 new was around $34,000 and goes 0-60mph in 6.5 seconds. Not bad by any means. For $26,000 you can get a 2008 Ford Mustang GT that goes 0-60mph in 5.6 seconds. The Mustang is much cheaper and easier to modify and upgrade and has more power potential than the S2000. Just my 2 cents.