If it's setup right, it tends to be better. It has better weight distribution, so the car is more balanced. Also, if you wanted to get technical with it, the engine being placed in the middle reduces the Moment of inertia (Because the weight is closer to the axis of rotation) so it takes less effort to allow the car to rotate, which results in better cornering. This is why most performance/race cars are MR anymore, unless there are other restrictions. In game case: NSX type R/NSX RM.
Edit: Just realized I'm in the drifting forum. Still, most of what I said applies, I think. I'm not as good with drifting, but I think these traits still help drifters as well as racers.