the extra you've paid only shows during extreme conditions, for eg heavy rain cruising or high speed emergency braking in wet, that's where you'll see the differences.

i've learned to appreciate good tire engineering and technologies during a long trip which it was pouring really heavily, my car feels really planted eventhough i'm travelling at a relatively higher speed compared to other cars on the road, there are a few cars fishtailed in corner, some aquaplaned. even my mom who knows nothing about cars was impressed

if you pot around town at 40-60kmh in dry, most tires will sound/feel the same, you might as well go for comfort based GT tires instead of UHP ones

i checked with their sunway branch, the price is still valid

matter of the fact, i just changed mine this afternoon
rm1996 for 4pcs of PS4
balancing and fitment only, no alignment

it's alot grippier than the F1D5 i'm replacing it, there's this rather high speed corner that i'm very familiar with, suffice to say that i took it at 20kmh faster than my previous record without any drama before i myself kecut
then again i'm not expecting any less as the price range is not the same (360vs500)

steering feedback is sharper at factory recommended tire pressure, and it rides alot more comfortable over the imperfections on the road
noise wise, it's pretty alright as it's still very new (<500km)
wet duno, no rain at all lately

i've not used ps3 before, the comparison was solely made between the f1d5 and ps4

i'm blessed (?) to still drive a car with hydraulic power steering, d5 definitely feels heavier and more muted on road feedbacks, whilst the new tires feels more precise and chatty, transmitting more road feel, and respond better to minuscule adjustment on mid corners

FC seemed to be improving as well, i'm getting about 1km/litre more so far