Quote Originally Posted by VMax1000 View Post
The seal is a bugger to fit properly. It will leak when the tank is filled to the brim. Had the same on mine and after filling up there was always a smell of fuel in the car until the level went down to about 3/4 full.

Definitely worth checking, but would be amazed if it would lead to the problem you're describing.

Car does step sideways easy enough already in tight corners with a decent amount of throttle.
If it only happens in right hand corners maybe checking the alignment and camber is not a bad idea.

Also check the tyre pressures (34 psi front, 36 rear rear)
have checked the tyre's and no loss of presure from last week so that;s OK - last night went over a high sleeping policeman maybe this has knocked the tracking out ( only had it checked last week) possible cause of sideways slide, car has felt so sure footed before round corners and all ! Andrew