The EF was a rocket ship if you could forgive the dodgy handing due to bad matching rear axle geometry in relation to the front end, corrected with the EF II.
The dunnydores of the time were too lively at taking off from a standing start for their own good, something Holden strove to tame with each model, where Ford's were better at rolling acceleration and taking the slack up at the higher end.
The VX finally heralded a refined package and the series II addressed the embarrassing negative camber with the rear end, hastened by Peter RTS Hannenberger's directive, instead of having to but mms wait for the cheap feeling and rushed styling of the VY.