Triple Eight Racing's Ashley Sutton said he knew his MG would suit the wet-weather conditions before scything his way through the pack for his first ever British Touring Car Championship victory at Croft.
The BTCC rookie - who already secured his first ever podium earlier in the day - started the final race in fourth position but fought his way up towards long-term leader Sam Tordoff after setting a string of fastest laps prior to the safety car period.
MG came alive during the wet conditions as Sutton's team mate Josh Cook also leapt from 14th to 6th during that final encounter.
Sutton admitted he 'panicked' when he first saw the safety car arrive but the MG racer managed to pounce on the race leading BMW when Tordoff made a slight error during turn three.
"I'm over the moon. I thought we made our day by getting my first podium in race one but then I started to do a rain dance when I saw the rain fall. I knew the car suited the rain and I love the wet myself. I just had to piece it altogether," said Sutton.
"At first I panicked when I saw the safety car because I wasn't sure how many laps we would have left. As I knew we would have two laps it was 'game on'. Luckily Sam [Tordoff] had a little lock up into turn three so that enabled me to make move.
"The move was always going to be aimed at Sunny In. Obviously if the opportunity arose anywhere else I would have taken it."
Sutton's first win - on a circuit which hasn't tended the serve MG well in recent years - has moved the rookie up into seventh in the points standings but the Triple Eight driver is refusing to get carried away as the series moves into it's traditional summer break.
"At the end of the day we're nowhere in the standings. We're just going race by race at the minute and scoring the team points," Sutton continued.
"Considering this was meant to be a weak circuit it really shows how we've got our head down and focussed on getting the car dialled in. We found the sweet spot in my car this weekend so we've just got to carry that over to Snetterton."