Help please.
Car (MY99) is juddering/ vibrating at all speeds. Feel it through the steering wheel, pedals, seat. Seems to be coming from the front only. Feels similar to unbalanced front wheels, but they are OK, and you can't drive through it as you can with unbalanced wheels.
I'm convinced it's engine related.
Recently had a new O2 sensor to cure erratic idle and cabin shake at idle - but another sypmtom of the above are milder versions of cabin shake and uneven idle.
Engine/ exhaust note seems to have deepened and engine sounds much more thrashy at high revs.

Very confused and concerned Blobster :(

PS. All sensors checked by local specialist garage (top guys) and found to be OK.

Local dealer - Arse, elbow syndrome.

Any ideas?

Well, mine seems to be doing the same thing.

I am in the process of checking that none of the brakes are warped, and then I will check the wheel bearings. I would suggest you do the same.