relay daft question.. steering

are allll 197's no matter of age on electronic PAS, only i was browsing the old ebay looking at bits and bobs and founds a pic where it seemed to have steeel PAS pipes as if it was pump/fluid system? im just confused
 
Ye, they changed to electric on the latermk 2 cars. Saves weight and energy apparently!
 
god knows what the pipe was then, yer thats what i fought, like 2005 changed all mk 2's to electric ( bar 182/172 ) and all mk 3's are electric, steering locks all part of the motor and stuff insit it on the keylss entry models