I read the same article today, and noticed the same two points. I'm hoping that R&T is correctly reporting the specifications. If it was going to be 9+" wider, it would never fit on my 4 post lift, never fit into an enclosed trailer, etc....
It also lists overall height at 47.6" vs 48" for my GTS. Again, at 6'4" tall, I'm still wondering if I'll fit without a seat lowering kit like I used on my GTS. My wife really likes the looks of the 2003, she also likes my GTS. She can't drive the GTS because the seat will no longer adjust. Great for me...bummer for her. If we both can manage to fit comfortably in the driver's seat of the 2003, we're selling my ZR1 and her Z3 and going for the RT-10 (another new feature, according to R&T. The new designation is RT-10 instead of RT/10).