Originally Posted by m4a1mustang

There's a bunch of different factors that can cause a car to lose control in a straight line. Ultimately it comes down to the driver to keep the car going in its intended path, but yes, any RWD car capable of losing drive wheel traction can wreck in a straight line. If you encounter some road irregularity that upsets the car or simply fall behind in your steering you can crash regardless of whether you're headed straight, turning, etc.

It's not just the super high power cars either... the 370Z has enough power to lose control in a straight line if the driver doesn't know what he's doing.