Don't use /umbraco/urlRewriting.config because its slow, very slow. Use it on web.config.

UrlRewriting.config

<?xml version="1.0" encoding="utf-8"?>
<urlrewritingnet xmlns="http://www.urlrewriting.net/schemas/config/2006/07">
  <rewrites>
    <!-- 
		URLRewriting.net is obsolete and will be removed from Umbraco in the future.
		If you want to do rewrites, make sure to use IIS URL rewrite: https://www.iis.net/downloads/microsoft/url-rewrite
		The advantage of using IIS rewrite is that it is much faster, much less CPU intensive and much less memory intensive.
	-->
    <add name="CarDetail"
	    virtualUrl="^~/2017/car/detail/(.*)"
	    destinationUrl="~/2017/car/detail/?receita=$1"
	    rewriteUrlParameter="ExcludeFromClientQueryString"
	    ignoreCase="true" />
	
	<add name="RedictToAnotherUrl"   
			redirect="Domain"  
			ignoreCase="true" rewriteUrlParameter="IncludeQueryStringForRewrite"
			virtualUrl="http://www.oldurl.pt/(.*)"
			destinationUrl="http://www.newurl.pt/$1"
	/>

	<add name="forcewww" 
		virtualUrl="http\://(?!www\.)" 
		redirectMode="Permanent" 
		destinationUrl="http://www." 
		ignoreCase="true" 
		redirect="Domain" />

	<!-- OR you can force NON WWW. Just use one -->
	
	<add name="RemoveWWW"
		redirect="Domain"
		ignoreCase="true" 
		rewriteUrlParameter="IncludeQueryStringForRewrite"
		virtualUrl="http://www\.(.*)"
		destinationUrl="http://$1"
		redirectMode="Permanent" 
	/>
	

  </rewrites>
</urlrewritingnet>