Oh, wow, that's cool! I love the ads they have on the site there. I laughed my butt off at them. Too bad GM/Saturn couldn't get away with ads like that here in the states, maybe they'd sell more ads if they did.
I don't really like the rear end on the the Tigra so much, it's too high, the car looks kinda squatty, but yeah, you can definitely see the relation to the Sky/Sol. That power retracting hard top kicks ass. I realized that the rear end on the Tigra is a bit taller than the Sky/Sol, but that's probably so they could fit that big bulky hood in there. I imagine having a higher trunk lid would give you a lot more storage room too. My guess is they have at least 5 cu. ft (on par with the Miata now!) or better when the roof is up. Very cool man, thanks for the link!