LKA seems much better now. On my recent trip to Bath, the car was a joy to drive with this set on. Much better with this update.
Used ACC too. Quite liked it, TBH, although a couple of metal strips embedded in the tarmac either side of a small elevated section of motorway, caused it to brake unexpectedly.
However, I played with TJA yesterday and that was horrible in slow moving, stop/start traffic. Steering keep moving where it wanted and had to forcefully turn the steering as is was hell bent kn going wherever it thought it wanted to be. An experiment I won’t be trying again.
Never had TJA on a car before so I don’t know what other cars behave like if they have this option.
TJA is interesting to me.
Have used plenty other cars BMW 330e / Audi Q5 / Tesla Model 3 / Polestar 2.
MG4 is a “dumb” system just like the BMW, Audi and Polestar. Nothing competes with the Tesla AI. Still just driver aids yet not as easy to get confused (except if changing lanes next to a lorry - M3 often freaked out if it mistook me moving over for the lorry encroaching in to my lane).
All cars could suffer “phantom breaking” with ACC system. Misinformation from radar or camera/glare.
EVERYTHING except the Tesla also suffers the same base issues. May slow down a little on any gentle bends. Lane assist not keeping a solid position on any bends - definitely not designed to steer any A roads. Only OK at motorways and to follow the car ahead. The MG4 is a bit rough speeding up or slowing down on ACC for my liking. It does 1mph less than the set speed for no reason sometimes - actually I miss being able to adjust my ACC speed by 1mph and not every 5mph too.
Lane keep basically aims between the white markings - yet easily confused by direct sunlight, old markings, studs/removed studs from smart motorway work, seams/join lines from road surface repairs, arrows for slip road exits, etc etc.
I use TJA in actual jams - works well. Start/stops the car. If markings were clearly visible it stayed in lane fine. Likewise TJA or LKA work well on a motorway. I love that the lane keep pauses when you signal, change lane then resumes when central to your new lane. The Model 3 standard autopilot didn’t do that and was a pain to keep re-enabing it with a ding dong chime after every lane change. Yet not worth £3,400 to gain auto lane change.
Only downside of MG, is I cannot tell you what versions of LKA/TJA software or hardware I have so my experience in a Trophy could vary wildly to others.