I've been suspicious for a long time that the sport Bridgestone tires have some issues. First I thought they needed to be broken in a bit. Then I thought they needed to be warmed up more. Finally I'm thinking they just plain suck for street driving.
They don't have the grip during daily that I would expect. My best guess is that they just don't reach the critical warm temp needed to get nice and sticky. When I had the car on a track a few weeks back, they performed great once I had them nice and warm. On the street, they stay so cold that I usually spin them like I was driving on hockey pucks.
Granted the suspension setup is quite stiff so bumps are not the Z's friend. I too had read that the Cayman is much better in this respect, but I don't have the automobile acumen to explain why the Cayman setup is better. It does seem the Z suspension could be loosened up but likely at the expense of road 'feel'.
|