I'm running with Continental Contact MX5 235/50/R18 on original wheels currently, but after being poisoned badly enough by the look of the 20 inches, I thought about switching my wheels. But I'm still a little hesitant of moving up because of the sacrifice on the ride comfort.

I understand the bigger tyres naturally would cater more to handling performance rather than ride comfort, but is there any recommendation for 19 inches or 20 inches tyres that are all rounder - quiet and soft/comfortable as well as good in handling and doesn't wear out fast?

I'm looking for 245/45/R19 for 19 inches and either 245/40/R20 or 255/40/R20 for 20 inches.

I see. But what do you mean that it will 'rub a bit' when doing a maximum turn with the 245/45/19?? Do you mean that the profile will be a little oversized and that the tyres will be rubbing against the walls of the wheel opening?

Any recommendation for 245/40/20 tyres?

And do you happen to ferry old folks at the back seats complaining about bumpy ride on your 20 inches? I'm just trying to get some opinions and rough idea on the comfort level with 20 inches.

I'm looking at the below rim profile.

Front : 19x8.5JJ
Rear : 19x9.5JJ

Will 235/45 fit in both front and rear? I'm thinking the 245/45 would be a better fit though.

The OEM wheels on the Vellfire is 18x8JJ if I'm not mistaken.

That's just what I'm leaning towards having, solely for the better look with deeper concave on the rear. I have no idea on the driving mechanics or dynamics involved. Understand that the handling may be worse since it's a FWD. I may still go with 8.5 on both front and rear though.