I think it's a good looking car, but I must agree with Perfectlap, the top is just a big sunroof. Porsche needs to bring back the classic Targa.
Also, I must concur that it looks a lot like a Bug. I was watching onboard track footage of an Enzo. He was coming up on a car and I thought, "what is a bug doing out there." It was a 997...... which promptly got passed.