If Spain Anti war and pro Muslim why is there still car bombings there?

Answer 1

There are many other terror groups in Spain. The biggest/most powerful are the basque separatists. They want to make their region of Spain into its own country. It has nothing to do with being antiwar.

Answer 2

When you say 'car bombings' i suppose that you refer to train bomb in 2004. Since then there aren't other Islamic attack in Spain.

Being anti-war doesn´t mean that Spaniard are pro-Muslim (most of Spanish are catholics or agnostic). By the way Spain has soldiers in Afghanistan.
The most important reason is that terrorist doesn't follow common sense.