Image461RACER's Marshall Pruett and four-time Champ Car champion Sebastien Bourdais wrap their Phoenix IndyCar test coverage with a look at how Friday night's running posed serious challenges, the gains made Saturday afternoon, and whether Chevy or Honda have found a power advantage that can be seen in the lap speeds around the one-mile oval.


Subscribe to Racer


Video: The 2017 Champions Issue

The 2017 Champions Issue of RACER is on sale now. Click here for more information.


RACER Magazine 25th Anniversary Video

33 years of SportsCar magazine history.

See more than 50 On Board videos.