The Formula One veteran beat the 20-year old DTM star convincingly by winning the first two races of the best out of three final.
Meanwhile, Wehrlein defeated the impressive Robby Gordon in the quarter finals before easily disposing of fellow youngster Esteban Ocon in their semi final match up. Ocon had previously defeated Indy 500 winner Ryan Hunter-Reay in the quarter final stage.
In the final, the first of a possible three races saw the pair line up in the ROC car. Coulthard won by 2.7 seconds leaving Wehrlein needing to win the second race to be in with a chance of winning the event.
The Ariel Atom Cup car was the car used for the second race. It was a closer encounter this time around but a late push for the win fro the young German saw him run wide as Coulthard powered through to make it two out of two.
The day before saw drivers team up for the Nations Cup event. Team Nordic, consisting of Kristensen and Solberg defeated team UK (Coulthard and Wolff) on a tie breaker after both Coulthard and Kristensen won their final races.
Team Nordic defeated the French pairing of Grosjean and Ocon to reach the final while Team UK beat the remarkable Team Barbados consisting of Rhett Watson and Dane Skeete to progress to the final.
Nordic and France beat both Team Young Stars (Wehlein and Palmer) and Team Americas (Gordon and Lopez) to progress front he earlier group stage. Team UK and Barbados advanced after knocking out Team USA (Hunter-Reay and Busch) and Australia (Whincup and Doohan).
In the final, Kristensen took on Wolff first in the Audi R8 LMS, taking a convincing victory. Coulthard levelled the tie by taking a surprising win against Solberg in the VW Polo Rallycross car.
Coulthard and Kristensen went head to head in the tie-breaker with both behind the wheel of the Ariel Atom Cup car. In the end it was Kristensen who prevailed after Coulthard ran wide at the final corner.
Images: Race Of Champions