205/50 is significantly bigger than 195/45, especially in the looks department. Way too chunky for a little car
T1R's work ok on light cars I've found, but having tried other tyres since I had those myself I'd probably not have them again when better is available for the same money.
Saying that 2 of my friends have kit cars on 195/50/15 T1R's and they stick like mad. If you got 195/50's it would likely improve your situation (and the overall look) for about 130 quid fitted, mega cheap in that size.