Last set I got said "FIAT"...didn't say which FIAT or have any useful information but I believe Matt Graham found a matching SKF bearing and has a number for that on the prosport forum.
For those interested I think I've sourced the bearings for the Club/Pro sport. They are about £15 each....I've got one on order and will compare with the ones on the car. If they are correct I'll post the part numbers on here.