personal recommend 195/55r15

If u dun wan to impact ur fc, better stick to 15. Anything above ll hav a huge change on ur fc.

55 i feel more comfy than 50 ..
50 i feel handling better than 55 ..

abit only .. so very big different ...

I m currently using 195/55/15 tyres for my myvi.. before this, I used 195/50/15..

50 looks nicer as not so fat.. I use 55 now as no more stock for 50 series..

55 is slightly more comfortable.. 50 slightly better in cornering..

Price difference a bit only.. less than 5 ringgit per tyre.. 50 cheaper than 55

i think 50 or 55 series its depend on what tyre u choose.. if like PS3 the sidewall really soft, so not suitable with aggressive driving style..
if u dont think too much about comfy just use 50 series..

especially when u changing lane at high speed.. if 55 series maybe u can feel a bit wobble compare 50 series if both is same brand tyre..

"for better grip and stabilization"

pointless if u go for cheapass tires... sticking to ur current stock wheels with higher performance tires will yield better results.

as for ur question...

id recommend 195/55....best all rounder... u get decent handling and comfort... even some track cars run this size...
but as i mentioned above... upgrade to bigger wheels but put goodyear NCT5 really for what u wanted.... best to budget a minimum of RM250/tire for a decent performing tire...

+1, better explanation here.. tyre grip is important too

My vios with ori rim 14 inch 185 can run to 460km per full tank.
i change 16 inch low profile 205 tyre only can run 310km per full tank. Same driving style. Mainly city drive.

i personally tried 195/55/15 and 195/50/15
i felt 50s is better as im lowered my ride. you may try to pair it with yokohama s drive as i heard its good enough
P.S: i using hankook ventus v12 195/50/15 naw