I have been there - and haven't seen anyone buying cars, designer clothes and apartments except expats and a few rich locals kids. Beijing is putting 1000 new cars on streets that are already in gridlock.
One party rule sounds like it could accomplish a lot in 'the best long term interest of many'. I am not sure there is evidence of this working. They have completely rebuilt entire cities like Beijing and Shanghai - but at the cost of other regions. Have they put a modern hospital in every region of the country?