Summer's coming and the only way I'm going to get to go places with my wife and 9 month old in my 997 C4 Cabriolet (vs my wife's full SUV) for day/weekend trips is if I could find a baby stroller that would fold into the boot/trunk of the C4 Cab. (The C4 and Turbo trunks are even smaller than the already tight regular C2 trunks, since the extra gearing for the all-wheel-drive takes extra space).
Luggage and the baby will fit in the back seats for weekend trips, no problem, so I just needed to find a stroller that could fold easily into the C4 front trunk compartment.
And I've found one that will do the trick and fold to fit: the Quinny Zapp. It's 65cm X 30cm X 27cm (27.1 in X 11.8in X 10.6in) folded.
I did a rough measure of my C4's available trunk/boot area, and since I've removed my CD Changer in favor of the Nav-TV OP-iP iPod PCM interface, my available space measures roughly 25in X 18in X 12in, which, on the face of it doesn't look like it'd work, BUT I created a little mockup, and it turns out the diagonal length of the C4/Turbo boot area (minus CD changer) is 27.75in, which IS long enough for this stroller.
So, solution found, but I think other young fathers out there might also love this thing. It's tiny when folded, strong, goes anywhere (or you can leave it at grandma's house under the stairs) and holds your little critters up to 44lbs. Also good for traveling on airplanes, hooking on the back of a bike, etc.
I bought mine here (they ship to US and Canada):