I run Toyo Proxies on my forfour and wouldn't have anything else they are awesome.
The grip and wear is amazing best of both worlds.
I had Toyo Proxes 4's on my CDi and they scared the provebial out of me !
Lacked grip when 'moving on'...car went ahead on bends rather than round them !
Brakes locked the wheels (lack of tyre grip), and the steering lacked real 'feel'.
The Hankook Ventus's I've got now are completely the opposite.
So much so that I 'threw' it around the damp race track at the Smart France Spring
Meet back in May. My seat lost grip on me before the tyres lost grip on the track !
For 'normal' road use, longevity, grip, and comfort, Toyo T1-R's or the 'factory fit'
Bridgestone Turanza's.