When traveling across America, there are many cars you could choose for the journey. But for a long distance journey like this, you're going to want something fast and powerful because, well, there are plenty of highways to drive fast through. At the same time you're also going to want to be comfortable. While something like a Lamborghini Gallardo is possible, it's just not convenient. No, you're going to want a grand tourer, and the Porsche 911 Turbo S fits the bill perfectly.

It may just be the ideal high performance sports car for a long distance road trip, providing plenty of comfort along with 560 horsepower to play with. Join Motor Trend's Johnny Lieberman for a trip across the US, along with a stop-over at Hennessey Performance in Texas.