In Munchen Deutschland, right next to BMW Welt and the BMW Museum. You can get à factory tour. And see for yourself how the 3-series is build.
They are built in Germany.
The BMW was founded by Franz Joseph Popp. The BMW 3 series was first launched in Leipzig, Germany. The Manufacturer of the BMW 3 series was founded by the German Auto Maker BMW. The first BMW 3 series was manufactured in 1975.
No
The 2009 BMW 3-Series has 24 valves.
The 2006 BMW 3-Series has 24 valves.
The 2005 BMW 3-Series has 24 valves.
The 2007 BMW 3-Series has 24 valves.
The 2008 BMW 3-Series has 24 valves.
The 2002 BMW 3-Series has 24 valves.
The 2012 BMW 3-Series has 16 valves.
The 2010 BMW 3-Series has 24 valves.
The 2014 BMW 3-Series has 16 valves.