GabKicks,
Torque steer is a trait that almost all high-torque, Front Wheel Drive or Four Wheel Drive cars exhibit under hard acceleration, or while accelerating while turning.
During acceleration, the torque output of the engine, especially in lower gears that multiply the torque output causes the drive wheels to try to turn either left or right, causing a change in direction. During accelerating and turning, the torque steer manifests itself in the sudden tendency of the car to try to go straight, or understeer.
So, it is a trait that occurs in FWD/4WD cars, not just turbo cars.
Now if a RWD car is changing direction while accelerating, that is called Wheel Hop, and is common in live-axle cars.
Hope that helps a bit.