A.Mattheis Motorsport, currently competing as Ipiranga Racing due to sponsorship reasons,[a] is a Brazilian auto racing team[3] based in Petropolis, Rio de Janeiro,[3] that currently competes in Stock Car Brasil and Império Endurance Brasil.

[5] A.Mattheis is among the most successful Stock Car Brasil teams, winning championships in 2005, 2008, 2009, 2011, 2012, 2021 and 2023.

The team won the 2005 Stock Car championship with Giuliano Losacco.

Since 2007 the team expanded his operations to four cars and created a subsidiary called WA Mattheis.

In 2009 the team signed a sponsorship deal with Red Bull, that lasted until 2016.