before I took my road test, I hired a coach, who is Vietnamese chinese, referred by friends. His rate($18/55mins) was kinda hight at that time among chinese coaches, but the Italian Quebecer coach from my driving school asked more---25 bucks. The chinese coach applied for road test for me, and before and after my practice he always picked me up/dropped me at subway station close to the test centre(he did the same for all his students), and on the morning of test I booked two hours with him and he let me use his car for the test without extra charge. and thanks to his help I passed the road test that day.
My experience is that chinese from Vietnam/Cambodia/Thailand/Mian3 Dian4, and all those small south asian countries are much more sincere and nicer to fellow Chinese.