Drag Limited and Redline Limited.....the difference??

[humaid]

Ok...I thought I knew what drag limited speeds were, but every time I keep reading Red line limited I keep getting confused.

Ok this is what I think drag limit means. The drag limit occurs when the car is using ALL of its power to overcome air resistance, so there is no power left for acceleration (i.e. speed stops increasing and remains constant.)

So what is Red line limited? Is it saying the same thing in a different way? Or have i described red line limit and not drag limit?

help....................