i wouldn't use nankang, especially as it rhymes with a word beginning with W.
also they use a cheaper rubber compound, which doesn't perform as well as other tyre makes especially in the wet.
its the old addadge, you get what you pay for, budget prices = budget performance, and the more ponies you have under the hood the better the rubber you want on the wheels.
my next tyres are planned to be vredesteins ssantas, a little more expensive than the toyos and falkens, but apparently got good reviews. i'm hoping they will be a good happy medium between the toyo,falken end and michelin pilot sports.
and cam skills seem to be the best priced