Top Three Automotive Companies

I want to know the recent development in automotive market, 
so I make a quick survey around the web and 
found the following information:
1st :Volkswagen Group

source
2nd: Toyota Group

3rd: General Motors

source
 
This is a quick information mining and processing thus feedback is highly appreciated. I will post the update on this soon 
(let's hope I don't have a busy week).

You can see why Volkswagen is able to top the chart since it covers cars, trucks and motorbikes;
as well as the notable luxury cars market (Bugatti, Bentley, Lamborghini, Porsche).

Toyota is well known for its brilliant manufacturing philosophy (TPS, TPM), thus contributing to its profitable and quality products.

While GM approach seems to be targeting high volume sales.

You can use this information to identify to best car to suit your budget and lifestyle based on the following criteria:

1.After sales services-Dedicated service centre will ensure your car get the attention its needed.All-in-one service centre may resulted in poor service as the technician must have broad range of knowledge on the systems and problems.

2.Cost of spare parts-Usually car manufacturer use similar components across different model/platform thus you can save maintenance cost.Taxi drivers can give you a quick information.

3.Depreciation-If you want to sell your car after several years, you have to identify the company popularity and demand in the market by reviewing 2nd hand car websites.

The end of part 1...