Starting from the best car manufacturers; American & German car manufacturers except Opel; this car I can never feel
Japanese manufacturers are some how good, in my opinion Toyota are the best diesel engines manufacturers; powerful diesel engines as it can work properly in the worst climate and driving conditions. Toyota is one of the best small engines manufacturers in the world as its 1300 C.C engines and smaller capacity engines can perform better than others from any other engine manufacturer
On the other hand American & German engine manufacturers are the best in powerful, large capacity & last long engines, how ever they are not that good in small capacity engines manufacturing. Definitely, if you are looking to high level of luxury and powerful performance; German or American cars will be the best ever
When I talk about Korean vehicles manufacturing; Koreans are not that bad specially the one belongs to General Motors [GM] – Daewoo – It's a very good car, keeping in mind the original ones – Korean – Which is powered by the German original engine like; Espero, Lanos 1, Nubira (models till 2001), Leganza (CDX model till 2002), and the great Chairman
About the Chinese vehicles; I can't say they are bad or good, some of them are very good – may be excellent –, some others are so bad, in my opinion Brilliance is a very good vehicle manufacturer. As any other manufacturer in the world when getting start with manufacturing they may have some mistakes, how ever these mistakes are major or not, but it's just a start, but you can reevaluate the manufacturer after several years or issuing several models, Brilliance after several years of manufacturing and several models issued we can have a fair look and reevaluate; we will find great boom in its way of manufacturing, and its manufacturing standards, now you can find its models in a good performance, accepted level of luxury, and lovely appearance