 Complete the following phrase:  Hunter-Reay began to compete in the IMSA Tudor United SportsCar Championship after the American Le Mans Series and the Rolex Grand-Am Sports Car Series merged in 2013. Hunter-Reay would drive for SRT Motorsports in the 91 Street and Racing Technology SRT Viper GTS-R-SRT 8.0 L V10 in the GTLM class. At the season-opening 