Wheel spacers

[Geoff Kingston]

I was talking to a fellow 603 owner yesterday and some other club members at the BOC event at Yeovil and the subject of wheel spaces came up to widen the track at the rear of the car.
Is this what Bristol did on the later cars or did they actually fit a wider axle, are wheel spacers a good idea or do they pose any potential problems or safety risks. Also how do insurers view this modification.
I would be interested of any thoughts on, or experiences with this modification and if it was successful the make and source of spacers that would fit.
Geoff.