Yaris Sedan Problems

[phaznet]

Hi there, I'd like to start by saying that I am very limited in knowledge of vehicles/mechanics.

We've got a 2007 Toyota Yaris Sedan that has been sitting in the garage for approximately 1 year due to recent circumstances (I know its not good to let a car sit for so long). Recently I tried to get it started; not surprisingly the battery was dead. So I borrowed some jumper cables and got it running again.

First issue: The accelerator pedal will not let the motor rev past 1500 rpm!

Second issue: I managed to get it moving (very carefully), and it felt as if I
was hitting a bump in the road every two feet (as if there was a rock that was glued to the bottom of all four tires!?)

I realize I'll most certainly have to bring it in to Toyota, but I was just curious if anyone had any idea of what is happening, or maybe someone has had similar issues.

Thanks in advance,
Julien P.