Round 4 - Austin, Texas, USA: IMSA WeatherTech SportsCar Championship Advance Auto Parts SportsCar Showdown Circuit of The Americas, Austin, TX USA Friday 5 May 2017 28, Porsche, Porsche 911 GT3 R, GTD, Mathieu Jaminet, Daniel Morad World Copyright: Jake Galstad LAT Images
IMSA WeatherTech SportsCar Championship
Advance Auto Parts SportsCar Showdown
Circuit of The Americas, Austin, TX USA
Friday 5 May 2017
28, Porsche, Porsche 911 GT3 R, GTD, Mathieu Jaminet, Daniel Morad
World Copyright: Jake Galstad
LAT Images