Re: MG7 1.8T engine details?
The V6 uses a Siemens unit, the 4 cylinder uses a Motorola MEMS ECU.
The UK MGs, although EU4, are all cable operated so you are restricted to China and Chile at present.
The Chile MG550 will be fly by wire but may be EU3, not sure.
There are not going to be many used ones available, the Chinese repair all their cars when they crash them!