Unfortunately I have not. But I have seen several accelerating from a stoplight and almost not making the corner on a perfectly dry road.

Granted, the car I drive also understeers madly ... but all cheap front-wheel cars do that. (yes, I like having fun with cars even when they're cheap and have no business being driven like that)

As for the car's limits, you don't buy a car like this to not hit the limits. If you do, then you make me sad.