the 1.3 ones are bonded rubber. much stiffer than the hydralic mounts, also the late 16v gearbox mount is also know as a 1300 gearbox mount, same item same pn
imo the hydralic mounts were proably to reduce noise or somethign comfort related, i have the g60 and 1300 combo and it works really well. engine if held nice and firm comapred to before but it can still move if need to without buggering the frount mount bracket