There are 3 sets of brands that offer tyres in the ideal 16" size.
Brand Tyre Series
Hankooks: R-S2
Sumitomo: HTR Z
Falken: FK-451
They have tyres in both the 225/50/16 and the 245/45/16
However I've had past experiences, with front wheel drives cars, for Falken and Sumitomo, firstly the Falken... are useless after 10k km and you will tyre squeel and lose grip at low speeds. Even for normal driving around town. Forget driving in the wet with Falkens that is if you don't have a deathwish. Sumitomo however were a better tyre and do last a bit however hard to source as they aren't a fairly popular brand.
This review was based upon a Toyota Corolla 2002 Hatchback Not really useful, but seriously, a 65kw car doing those characteristics to those branded tyres... kinda says something about those tyres, i mean the car was a fairly weak standard car. So in all honesty stay away from Falkens i think they're over rated.
I will however probably consider Hankooks as there ratings on several sites aren't too bad and they can be ordered fairly regularly and easily.