I love the game, but when you perform poorly and the other cars strangely wait for you on the next corner, or when you do really well but can't seem to shake off the second driver (that you passed really easily), that's rubber banding. Let's not even talk about a car being a lot slower than you at the exit of a corner that magically pass you later in a straight while going full throttle (same car) and that's no drafting.
The only racing game I played with no rubber banding was Ferrari Challenge, if you fucked up once, you had lost all chance of victory. Race was often designed so you would pass first just at the end, it was perfect.
I prefer time trial and drifting anyway so it's not big deal but if there's no rubber banding in Driveclub then it's peace on Earth and equality for everyone.