This is probably high end stuff but this car must be Thought controlled from an old Soviet era Mikoyan design. You have to put on a special helmet and "Think Russian" - then the car just grips. If you do lose control (Yeah right) it seems to know what you really wanted to do and the car almost saves itself. This is as you get it - but with all those capatalist driver aids turned off.
Yeah gotta go with the Furai too - that thing is about as close to auto pilot as it gets. I seldom use it because handles a little TO well if you know what I mean.
In premium, the 458 or 430 Scuderia both handle very, very well stock; the Lexus LFA as well.
The '65 Nissan Silvia, without a doubt. You didn't specify "best" to mean capable of cornering at high speeds. The '65 Silvia, when left stock and equipped with racing soft tires, actually has so much body roll it will SCRAPE THE FRONT BUMPER around a kart track! One of the funniest things I've ever seen.
For good handling in the sense it was intended, give me a Motor Sport Elise. That car is what Satan would drive.
Best as in most precise:- Nissan GT-R '07 (obviously not counting race cars or Red Bulls)
Best as in most fun:- Erm...Volkswagen Typ2 Samba Bus? Chevrolet Corvette '54? Jay Leno Tank Car? Mercedes-Benz SLS AMG? There's a lot of fun cars, I can't decide.
Best as in the perfect balance between precision and fun:- Lamborghini Gallardo LP560-4, or the Lexus LFA.