Cheers for all the input guys.
All 4 tyres were new upon puchase 2 months ago so not an issue there.
Had tracking done as part of pre-delivery work, but given the amount of unavoidable potholes I encounter on Bucks roads could well need doing again already.
Am quite fastidious about tyre pressures, check them regularly and run them at manufacturers recommendation, though I do think 2.4 bar on the rear is high? May adjust down and see if it improves grip/reduces 'squirm' - thoughts?
Failing that will get rear suspension checked out, but would be sorely disappointed if it needs anything already, within 2 months of purchase from Alfa main dealer who spent a load on front suspension work. Its an 05 plate with 44k miles.