I just rented a 2012 V6 (base) and liked it so much, I started considering seriously getting a V6 Mustang as a second car (don't need a GT and since it's a second car, I'm trying to keep the price as low as possible whilst getting a 2010+ body since I like the changes, especially in the interior and added refinement). I love the new motor, however was a little surprised at how "sluggish" it felt in day to day driving. When I got on it, it would move as the RPM's climbed, but otherwise, it was fine and pretty effortless, yet didn't quite feel like 300 HP in a relatively light-ish car, and not as snappy/direct response as I'd have imagined. I test drove a 2010 with premium package, with the old motor, and have to say that upon startup and at slow driving, it sounded a bit more "muscle-car"-y. In traffic during the test drive, the characteristics reminded me more of my old SN95 GT, more torquey than the 3.7 actually, not as refined pedal response. I actually thought that it felt even more powerful than the new 3.7L.... until I got the RPM's up a tad, where it quickly ran out of breath and lagged. However, all in all, I was still impressed with it, considering how much criticism it gets, and figured that to me, if I do go with a V6, getting a 2010 with a Premium package might be worth saving a little bit of $$$$ over a 2011 V6 (used) with a base package.