My MG GT experiences jerky acceleration, and there's a squeaking sound when I turn the steering while driving. Additionally, there's a squeaking noise when I rev the engine after parking. What could be the issue?

There is a lag issue.

The common issue of jerky movement and the squeaking sound when turning the steering wheel seems like a problem with the flat bearing, right? The front suspension of this car feels very loose on concrete roads and makes abnormal noises. Is yours like this too?

Same here with my car.

There's a jerking problem while driving. My car has the same issue too.