 Complete the following phrase:  Post-season, he stepped down from IndyCar full-time to move to Penskes IMSA SportsCar Championship program. Castroneves was entered into both the IndyCar Grand Prix and the Indianapolis 500 as part of his 2018 campaign; he prepared for the races by sharing notes with his teammates and familiarizing himself with the car. Castroneves team employed a strategy allowing him to finish sixth in the IndyCar Grand Prix. At the Indianapolis 500, he started from eighth place, before losing control of his car in turn four and crashing on the 146th lap for a 27th-place finish. In the 2019 season, he again entered both the IndyCar Grand Prix and the 