Europe as a region has the biggest share of diesel cars:
Percentage of Groups Total:
Peugeot 42%
BMW & Daimler 40%
PSA 38%
Renault 25%
Volkswagen 25%
Ford 20%
General Motors 10%
Toyota 11%
Source: Wards Auto; European Automobile Manufacturers Association. Diesel Image Source from Telegraph UK. Car Traffic Image Source from Indian Express.