Germany underperforms rival European stock markets after VW slumps
* Slump in Volkswagen pushes down Germany's DAX
* FTSEurofirst 300 and Euro STOXX 50 up 0.3 pct
* Europe bourses in 2015: link.reuters.com/pap87v
* Asset performance in 2015: link.reuters.com/gap87v
By Sudip Kar-Gupta
LONDON, Sept 21 (Reuters) - European equity markets gained ground on Monday, buoyed by stronger bank and chemical stocks, although a slump in carmaker Volkswagen hit the German market.
Volkswagen's shares slid 15 percent after Volkswagen told U.S. dealers to halt sales of some 2015 diesel cars after regulators found software it designed for the affected vehicles gave false emissions data.
Volkswagen launched an investigation into the matter and could face penalties of up to $18 billion, the U.S. Environmental Protection Agency (EPA) said.
The drop in Volkswagen hit other carmaker stocks, with BMW and Daimler down around 4 percent, while Germany's DAX fell 0.7 percent. Continuación...