Very disconcerting whole body oscillation under hard acceleration for example when trying to overtake on motorway. Body of vehicle seems to want to oscillate but stops as soon as lift off accelerator. At first thought it was rear bushes on links but both replaced. Both rear shocks also replaced but no difference.
Very disconcerting as car feels as if it is out of control if trying to overtake from say 40mph. Otherwise drives OK. No rattles/clocks. Not a judder but a whole car wobble.
Tyres all newish Goodyears. FL2 2009 120kmls auto.
Thanks for any advice!

What about the steering and front suspension. Its primarily a FWD car. Jules

Thanks Jules, definately next step. We started at rear as the sensation is of rear wheel steer. The feeling is as if the rear starts to oscillate almost as if you were towing a trailer and it hits a certain frequency and sets up a to and fro swerve.

Although it seems entirely physical, check for error codes in case the stabilisation is malfunctioning (it works on rear brakes)

From symptoms, more likely is a CV joint, or similar, locking up under torque stress, or engine/transmission mounting. FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 77k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

Thanks Ian, it sounds as if I should try to find a specialist to do an error code check and then a general transmission/suspension mounting check.
It is the most odd sensation when it occurs, quite scary as if the oscillation will get worse and cause complete loss of control. It stops when throttle released. All the more odd as when driving gently all seems OK.
Best description I can think of is that car starts 'snaking' when pushed even moderately hard on motorway.

Sounds horrid.

If the stabilisation system is playing up then I'd have thought it would default to off rather than make things worse - but Im guessing. Jules

I would think that you are right Jules, it should be failsafe.

The description sounds like what happens when you are tail heavy or towing with no nose-weight on hitch.

I thought that the FL2 had electronics to counter that with the brakes.

Rear dampers, springs, suspension mounts come to mind.

Similar snaking/weaving can occur if the tyres are tramlining. This used to happen a lot with the stiff walls of low profile cross-ply tyres, but I believe radial tyres cured that. FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 77k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

Thanks All. Just to clarify, this happens on any road surface during moderate acceleration combined with a slight steer, a typical overtaking manoever. I described the movement as snaking as if there was a trailer causing it, but it happens without any trailer!
Really foxed by this one, having already replaced rear shocks, link arms and bushes to no effect.

A Search on Forum for 'Wobble' gives the following
https://www.freel2.com/forum/search.php?se...rch_time=0

Of the Threads where the OP bothered to tell us the outcome, I spotted this one, which turned out to be a Driveshaft.
https://www.freel2.com/forum/topic14335.html?highlight=wobble

PS If all questioners told us what happened it would make the Forum priceless. FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 77k+ miles) (MY2015)
Metro in its 11th Year of (Extended) LR Warranty / Full LR Service History
(Expensive, but Trouble/Worry free - hopefully?)

Thanks Ian if I ever get to the bottom of this I will certainly let others know as it us such an odd one!