As you may remember, a Porsche cayenne was featured in an episode of Modern Family in season 1, episode 6. The cayenne was just a background vehicle but was sharp and eye catching. Again there seems that a Porsche was featured later in season 1 as well. The Porsche 911 Carrera S Cabrio (as seen above on the left) was in episode 20, putting great distance between the two Porsche sightings.
The Carrera S Cabrio was a background vehicle as well, a very sharp looking maroon with black soft top, the car I believe was in the episode with the electronic car turn around at the very swanky party. Something happens to one car, and hopefully it wasn't the Porsche. I could be completely wrong but that's what it looks like from the shot above. The Porsche is beautiful but sadly only a background vehicle.
I was watching Modern Family via Netflix, but found that the show became a chore to watch, and gave up right before the season 3 finale. It is a funny show and I might watch it weekly if I had caught up, but what once was a great season 1 turned into a weird slightly dragging season 3 and I decided against continuing. It's a great show if you've got the time for it. The comedy is family appropriate and every entertaining, just not marathon type material unless you are really in love with the show.