The Above People..
You all are going on about road grip, tyres etc..
..
The tires you are installing, talking about so highly, are NOT grippy..
Yoko dB, Dunlop R1 waghera are very old tires now... Normal usage? yes.. Dry and Wet grip? No...
If you want stable good tires, you need to properly search by looking their Wet, Dry grip, wet, dry braking distance, Handling, and comfort parameters....
Only then you can choose 1.. "feel" pe kaam nahi chalta..
Continental Premium Contact series is good CPC5 and CPC6, Ultra Contact 6.
Likewise Pirelli Cinturato P1 is again not a good tire, I mean not grippy enough..
..
You need to look for comparable Michelin and Pirellis..
As for driving on Motorway, you need HANDLING..
Car's Mass IS important in deciding its grip.. Mehran urh jati he Bus saaath se guzre to..
There is a reason Mercedes are stable, because (not counting chasis, suspension geometry, aerodynamics) because they have MASS...
AND in most traffic situations we take evasive action.. So you need Moose test to decice the grip.. Check the suspension setup.... Weight of the car and the aerodynamics at the end...