Quick share on 1 yr service experience of GT, at ~14.4k miles (just under the 15k).
Service cost just under £160. Extras I paid for were:-
- Check, balance, track, etc on wheels - vibration at motorway speeds. Turns out the UK potholes I can't avoid had upset the balancing on all 4 wheels.
- Upgrade software from R31 to R34 at my request (no warranty reasons triggered it). Related to other threads, the sound is improved - feels for enveloping so guess there's more volume from subwoofer. One benefit I didn't expect was a new "preferred settings" option - rather than 10 presses before driving to set up the "assists" as I like them, I can now do this in 3. Same feature is apparently standard in IM models.
- Intermittent failure of the charge flap to unlock (similar threads in forum) - they have confirmed this is a faulty flap and have replacement on order as warranty replacement. Said it was in stock in UK so hopefully not long to wait.
Overall cost was ~£400, most of which at my request, and very pleased with the experience (MG Rawlinsons, Bury St Edmunds). Just awaiting the replaced charging flap.