Xeno Chauvin

Test drove a 2006 Santa Fe 2.7 and a Tucson 2.7.
Both were dealership "demo" cars.
(I believe both cars had some type of traction control?)
In both cars I noticed a definite "fade" when turning a corner, almost
a hesitation until acceleration engaged.
This happened on standing turns,as at a stop light
and "driving turns" and in either direction.
Of course the salesman didn't "notice" what I
was referring to.
Is this common to Hyundai or might it be some
malfunction in the traction control?
McM