It does look too tall, but it's either a squished pic, like you suggested, or an optical illusion or something. If you look at the little thumbnail below that pic (in the list of car choices) you'll notice that everything is in the proper proportions.

The GT series has always been pretty accurate as far as how the vehicles look, and the extent that the creators went through this time around ensures that the virtual cars will be very close to the real-life counterparts.

Future G35C Owner... ...Never too soon to think about modifications!!

 

Not only can you race with G35 in GT4, you can connect your printer to PS2 and print out your best pose. As demoed at E3, a new photography mode allows the player to select a background, pick a car, and take a picture of it in any angle. They used a Epson printer at the show, prints slow, but detailed. Unfortunately, they didn't have our car in the photography demo, so I wasn't able to print out our G in its finest. . .
But I do have GT4 Prologue for Japanese PS2, and our car looks really nice in there. And because it's Japanese version, Skyline doesn't come in diamond graphite color. . .

6MT_Graphite/Graphite_4P Aero_Premium_Nav_Sat

 

I wonder how many of us in this forum would take our cars rallying and drift driving in the dirt like those game pix... With GT4, now we can without having to worry about dust on our cars and having to wash RIGHT after... =)