First car, A RX8 -or- A 350z?

I'm going for my first car, i have to pay half and both these cars are around 10k and that is a good price for me and my father. I love both of these cars very much, do not say i would be too inexperienced to drive something with this big and engine, i've been driving a 4.4L V8 land rover for a year now and it really moves out, its a great car, but for my personal car i want something sporty, if you have any other suggestions in a car used around 10k, coupe or small 4door and 200+BHP (at LEAST). that would be great :D