Despite becoming more widely known for his NASCAR role, Gilliland is a seasoned road racer and is looking to translating excellent runs at Infineon to The Glen.
"I think a lot of what we know about Infineon can translate to The Glen," he reasoned, "We've done a lot of road course testing this season at VIR and New Jersey Motorsports Park, and I think we have learned a lot each time we went out. We had a great primary car at Infineon, and we have gathered a lot of good information to have a good solid weekend.
"Of course, there will be a lot of good road racers there this weekend - like Ron Fellows, Boris Said, Max Papis and, of course, Andy. A lot those guys are coming in for a one-off race, but our equipment for this weekend is as good as it has been all season, and I feel like we have a great chance for a top finish."
New sponsor TaxSlayer.com will ride with Gilliland for the first time this weekend, having agreed to a six-race primary backer deal that will see its red-and-white colours appear on the #70 at The Glen and then revert to the team's regular #71 for the remaining five races.
"Watkins Glen will be a good debut for TaxSlayer.com on the car," Gilliland said, "The car really looks great. It has a medieval feel to it, which is cool, and I am looking forward to meeting those folks and working with them over their six race term."
TRG has run all season with limited or no sponsorship, but has still managed to showcase the competitiveness of a lean and efficient programme.
"We are very happy to have TaxSlayer.com on the car for six races," team principal Kevin Buckler admitted, "We are going to do everything possible to make their effort pay off and, hopefully, we can grow their participation in the sport.
"This agreement gives us a little breathing room and will allow our team to show some of the competitiveness we know is within our strong little group. The NASCAR Sprint Cup Series is a fantastic place for TaxSlayer to make their motorsports debut and we are proud to have them onboard.
"David has proven his road racing prowess with many strong finishes, but we need to help him translate his previous success at Infineon to Watkins Glen. With Andy as his team-mate this weekend, that will go a long way to making both cars very competitive. We are ready to go with Andy and our first ever multi-car effort in Sprint Cup, so this is really a big weekend for all of us."