On the 14th of June, Hamilton will trade in his McLaren MP4-23 F1 car for Stewart's No.14 Mobil 1/Office Depot Chevrolet Impala.
Speaking of the swap Hamilton said: "Tony and I will have some fun with the swap and make sure we put on a good show. American race fans are massively enthusiastic about motorsports, so I hope to see a lot of them down at The Glen to see it firsthand.
"It's a racer's circuit and will give us both the chance to understand the differences between the two styles of racing at this legendary track" said Hamilton.
The track has a special significance for McLaren since the team won its first Drivers' and Constructors' Championship there with Emerson Fittipaldi, in 1974.
Although Mobil 1 and McLaren have been partners since 1995, Mobil's relationship with Stewart-Hass (who run Stewart's NASCSAR) is a season in the making.
"When you've been around competitive racing for as long as I have, you really look forward to new experiences," said Stewart.
"This car swap with Lewis is definitely one of those opportunities. I already have quite a bit of respect for what Lewis and the F1 drivers and teams do, so to experience laps in the cockpit of a F1 car and see what Lewis can do in the Cup car is something I am really excited about."
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