Thinking of upgrading my rims 1 size up. the tyre guy is proposing 205/50R16 (+1.4% change from current 15").

Below are the 2 brands he offered,
Michelin PS4
Continental UltraContact 6

Not sure which is good? I've heard about PS4, but wanna hear about UC6 too. 

was crawling the tered and saw your reply to someone else's too, same tyre size even! 😂
*continues to do homework but skewing towards ps4 now*

Thanks! Will keep in mind when changing tyres. GYF1 will still be better choice than UC6 right?

Also, if I may seek for your knowledge about tyre and wheels, do I have to take note about the offset and scrub radius?
I’m changing from 185/60R15 ET40 to 205/50R16 ET46 (both rims are from VW Polo HB and Vento TSI respectively). Apparently those online calculators said that the new rims have negative scrub radius which may affect braking and stability 🤯

I actually requested the 16” to fit with 195/50/16 or 185/55/16 but tyre guy say those rims need to fit 205/50/16. So i wonder if really cannot fit or just want me to buy the expensive one?

On the other hand, regardless the price, 205/50/16 slightly bigger 1cm diameter but still can be used too right? Like, I won’t lose out the stability or braking performance.

Paiseh asking a lot. Just wanna know what I’m paying for, don’t want buta2 change then after that only find out consequences. Newbie trying to change tyres ended up so many things to worry with 😂

Aiya my bad I missed out salient points. Yes, it’s 7J x 16” alloys. Those rims was fitted with 215/45/16 out of factory (Vento TSI) but I think that’s too much and >3% diameter change for my car.

I think with some homework (digging old posts) done and your kind inputs, I’ll just go with that rim with 205/50/16 PS4 and test fitment........after mco 🤞🏻 Thank you guys very much 💪🏻

just thought of updating to sifus who spent time to reply my query previously
finally bought new shoes for my car - 205/50/16 PS4, manufactured 4420 (one of them is 4520)
the tyre guy suggested to test fit with 1 piece and see if it rubs the fender or insides, but all is well.
(contacted my SA who sold me the car to ask him to help ask SC if my car can fit 16x7 rims, since the rims are of the identical car higher specd variant, apparently they say can)
tried to fit my hands into the, when i'm on my old 15" wheels i can fit 2 fingers between tyre and front absorber, now i'm left with 1 finger. around 1cm+, should that be fine?

been driving around 50km around my area (i stay next to MRR2, so i can spin around abit without roadblocks, yet), so far i'm happy with it 
less bouncy when crossing road bumps, slightly more obvious bumpy when running over shitty roads but i can feel the car a little more lethargic probably due to the heavier weight overall.

shared this happy news with my car friends and they ask me why I take UHP tyres when i dont always whack corners or speed (my car isn't a powerful car to begin with 😂)
i'm thinking to myself, UHP or not, at least i know they are safe to use when i needed them