Just changed to this VP3 this morning. Size is 205/55R16. Really irresistible good price of rm220/pc. Since changed all 4, shop threw in wheels alignment as well but politely declined as I have my own place for wheel alignment.

Got 3pcs of 3419 manufacturing date and another at 2519. Con't find UTQG on the outside face of the tyre after mounted on rim.

Initial feel of the tyres was it has stiffer sidewall for a comfort biased model. Markedly stiffer than outgoing Ventus 2 Concept2 and S1 Noble2, both touring tyres from Hankook.

However, it still have a very "premium" feel to it, soaking up road imperfections better than V2C2. It is something like reliving S1N2 again, but with a stiffer sidewall. Steering feels more direct.

Can't say much as only covered around 100km after install. But initial impression on dry grip is at least at par with S1N2 or better. Like K435 (Kinergy Eco 2) I have on another car, noise signature is moved to lower frequency and it appears to be as silent as S1N2.

Not much else to talk about since tyres are still very new. Will update on this tyre when thread is bumped.

Can't say much as only covered around 100km after install. But initial impression on dry grip is at least at par with S1N2 or better. Like K435 (Kinergy Eco 2) I have on another car, noise signature is moved to lower frequency and it appears to be as silent as S1N2.

As per my ori review above, nothing to add or change as of now after 20+k km of driving. I think it is a S1N2 with different thread pattern. Better aquaplaning resistance than S1N2 and V2C2. Threadwear also is same as S1N2, I think this VP3 can last at least 70-80k km on moderate driving style. Can't and not fair to compare with UHP as price difference is too big.

how big?

I also 18... if I come across I ping you

maybe your alignment more aggressive? I rotate/align yearly...my worst tyre still got 3+mm threads...

imho prime3 is just an upgraded eco2...the patterns quite similar so will share some characteristics...

s1n2 is actually all season tyre, same max performance class as s1e2...I went to 4 shops now looking for my size, too bad no more...

S1N2 is just entry level UHP or actually still like borderline touring tire, not real UHP. S1E2 is their top UHP though, much better.
My Mark X also uses staggered rims now but the wear fortunately is quite even, just slightly faster at the front. Yours wears out faster front or rear? If still quite even then no need rotation.

inner or outer

S1E3 already out a few years ago, just not yet available here yet.
What I could suggest is that use higher treadwear tires at the front. For example like front uses PS4 at 320 TW and rear uses CSC5 at 280 TW.

maybe too much toe in...maybe not enough -ve camber...maybe absorber problem also...

wear can be even out a bit with proper alignment to suit your car/style

Those are just examples I can quickly think of la.
Your outer wear out faster but you don't drive hard in the corners, then maybe your alignment is a bit too much toe-in.

Toe adjustment is different than camber and always need to be adjusted if not aligned properly or when need to replace the rods. Camber issue normally also just a bit too negative which will eat the inner treads faster, not outer treads. Outer treads might be worn faster if positive camber which I think highly unlikely in a modern Mercs.