How to delete SOLR indexed data by query with curl?

Question

I have a SOLR schema.xml like this:

Answer 1

In this way would be easier: curl "http://46.231.77.98:7979/solr/collection/update/?commit=true&stream.body=(cartype:stationwagon)AND(color:blue)"

It's a simple GET request and you have just to add the parameter
stream.body=(cartype:stationwagon)AND(color:blue) to the query string.