Ed Carpenter Racing, competing as "ECR", is an American racing team that currently competes in the IndyCar Series. The team is owned by driver Ed Carpenter. The team is based in Indianapolis, Indiana, and currently fields the No. 20 Dallara-Chevrolet for Alexander Rossi, the No. 21 Dallara-Chevrolet for Christian Rasmussen and the No. 33 Dallara-Chevrolet for Ed Carpenter. In 2015, the team merged with Sarah Fisher Hartman Racing to form CFH Racing, but became ECR again in 2016. - Source: Wikipedia
