The 26-year-old, along with his Sri Lankan team-mate Dilantha Malagamuwa, came up with two stunning drives while overcoming gearbox issues, which led to a pit-lane start for the second race as the duo picked up valuable points to finish creditable second in the championship.
Armaan, the JK Tyre Brand Ambassador, will be participating in the Super Trofeo World Final, a double-header that will conclude on Sunday at the same venue.
As part of strategy, Dilantha went out first in Race One, but he struggled with an errant gearbox before handing over the car to Armaan who drove a brilliant second half of the race to come in third.
Armaan all but missed the second race as the team decided to change the gearbox. The work was still in progress when the rest of the cars lined up on the start grid.
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The delay provided just enough time for Armaan's car to be readied for a pit-lane start. The pair then carved through the field to finish fourth.
Summing up the final round of the series, Armaan said: "Our car arrived only at 5 am on Thursday. So, there was literally no time to do any work on the car. The three Free Practice sessions went off quite decently for us and we qualified third for both races.