2005 Nissan Altima tires problems

I have had nothing but problems from my 2005 altima that I purchased new in sept 05. The first week I owned the vehicle my engine light came on and the vehicle was very sluggish from takeoff, I then called the dealership where I purchased the vehicle and was told that all nissan are sluggish and need to be driven to get the "newness from the vehicle" what kind of crap is that.

Traveling on 95 north from va to md in 2005 nissian altima that was purchased 06/06/05 rear passenger tire completely shreded after gaining control of vehicle and pulling car over, only sidewalls of tire remained. We changed the tire to the donut that was provided with the vehicle and drove to the next exit in search for a place to replace a tire on a sunday afternoon.