1.you will demand acceleration, braking and cornering.. everyone wants the same..
But my idea of those clearly is different to a PS3 driver's idea of the same. OK, I'll concede the PS3 has a stunning stopping ability in the dry.
Additionally, tunnie for example, wants none of those, he wants something that lasts a million miles, and doesn't care about grip.
2.Tyre tests are done by serious organizaions like TUV or others.. physical measurements are done with different tyre brands .. can you claim you will run 100 metres faster than Usain bolt under different conditions
It matters not who do them. Unless the comparison is done on the same car, by the same driver, its invalid. Has no meaning. Pointless.
I can assure you, Pirelli P6000 (a rather mediocre tyre IMHO) is not a good tyre on the Omega. Its 'OK', but not good. On my previous Astras, it was quite poor. On my little Rover, its stunning. Brilliant. Can't praise it enough. I would also say, on the Rover, there was a marked difference in handling between the H and V rated ones.
So even with the same sized car, same driver, tthe same tyre can swing both ends of the scale with different cars.
3. cant agree
Understandable if we can't agree on first 2 points
I will never listen to any review unless its done by someone who makes the same compromises as me, drives a similar style to me, and is done on the same car, set up similar to mine. Otherwise its a waste of time. IMHO.
1.. you can also add longevity.. this is also something desired in common..
2. tyres are physical and chemical structures.. so do the road asphalt.. and
tire grip is a function of tire compound , thread shape and road surface .. its called friction coefficient..and its independant from mass or any other forces.. its obvious you give more importance to cars suspension setup and driver than they deserve .. of course they do effect, but in science when measuring factors you keep some parameters fix to solve the problem..
besides with respect to phsysic laws the manin component that keeps you on the road is this fricition coefficient.. you can not change that by changing car or the driver..
if measurements was useless we would still live in stone age..
and finally the measured braking distances, acceleration and lateral grip will be proportional with respect to brand in any other car.. but claiming a tire will have a better lateral grip or stopping distance than the test measurement and beating other better rivals is simply against science.. Like the Usain Bolt example..
tyre companies spend serious money during development phase and they advance .. how ? because they measure.. if tyres behave absolutely different in other cars, they would be happy and stop spending money..
if you have time, please take a glance at this link..
http://www.motortrend.com/features/consumer/1103_goodyear_eagle_f1_asymmetric_2_tire_test/viewall.html you will see how much effort is spent.. From my point of view neglecting all this work is emotional than being logical..