Hi if anyone can help, I notice from last one week when I accelerate to join motorway or accelerate to overtake my car judders. Car been fully serviced last week as well. I also notice from last few weeks cars sound has been changed while driving on local road on gear two and three. Thanks for any advice in advance.

You just have to tell us what engine you have. Stutter is more common for petrol engines and usual cause is spark plugs, cables and coils related, but it can happend on diesel as well.

Hi it's Bravo Active T Jet 1.4 Petrol. Should I try to change the spark plugs?

Is it from the engine or the drive train?
Does it do it only at low speeds/high load? or at high rpm /high speed?

The t-jets have a few common drive shafts problems.. so it could be that .. if the problem is at high speeds, but the problem can also come from other stuff like worn shocks, worn/loose engine mount, a bad spark plug or spark coil, bad fuel, bad fuel pump, bad fuel pressure regulator...etc