One of the Aston Martin Racing GTE cars comes in for tuning between sessions on Friday

One of the Porsche North America GTLM contenders followed by the Chip Ganassi Racing Prototype

The RSR Racing Prototype Challenge car driven by Duncan Ende and Bruno Junqueira sweeps into Turn 4

Sean Rayhall and the 8Star Motorsport Prototype Challenger

2nd place finisher Audi R18 e-tron Quattro

Santiago Creel pilots the Wright Motorsports car around turn 20

Dempsey Racing's Porsche 911 GT

Rain tires were essential equipment over the race weekend due to the unusually wet Austin weather

Team RLL BMW Z4 GTE piloted by Dirk Muller and John Edwards

The Dodge Viper SRT Motorsports cars dominated the GTLM division taking 1st and 2nd on Saturday

The TRG-AMR Aston Martin GS car driven by Tom Papadopoulos screams out of Turn 18

Crew get the Starworks Motorsports ORECA-FLM09 back to the paddock after Practice 2

The Porsche 919 Hybrid piloted by Timo Bernhard, Mark Webber, and Brendon Hartley

The Prototype class winning car driven by Scott Pruett and Memo Rojas of Chip Ganassi Racing

Porsche GT3 Cup teams had the honor of being the first ever to race under the lights at COTA. Here is 3rd place finisher Colin Thompson.

Dodge Viper SRT Motorsports

The JDC/Miller Motorsports ORECA-FLM09

An Oak Racing crew member drains fuel from the Ligier JS P2-HPD

The Rebellion Racing R-One Toyota driven by Nicolas Prost, Nick Heidfeld, and Mathias Beche

The PC entries of RSR Racing and BAR1 Motorsports accelerate out of Turn 13

1st place GTLM Dodge Viper of SRT Motorsports

The Alex Job Racing GTD 911 piloted by Cooper MacNeil and Leh Keen exits Turn 2

Turner Motorsport pilot Markus Palttala takes a break between sessions on Friday

The Turner Motorsport BMW Z4 celebrated its 300th start with a strong 3rd place finish in the GTD class