WATCH: Formula 1 Cars Returned To The Nurburgring This Weekend

Sebastian Vettel was reunited with Kinky Kylie this past weekend at the Nurburgring Nordschleife, and the four-time world champion gave the old girl a proper spanking. The video is attached below, and we promise it's safe for work.

Vettel, looking much younger and more aerodynamic after getting rid of the long hair, participated in the Red Bull Formula Nurburgring alongside current and former Formula 1 legends. Yuki Tsunoda showed fans what the Honda NSX GT3 Evo (an Acura NSX built to GT3 racing spec) is capable of, while David Coulthard stood in for Daniel Ricciardo, who was also supposed to hoon one of Red Bull's marketing cars around the Green Hell. Ricciardo is currently out of action after breaking his hand at the Dutch Grand Prix.

The line-up of drivers also included Gerhard Berger, Ralf Schumacher, and Mathias Lauda, son of Niki Lauda. The latter drove his old man's Ferrari 312T F1 car.

But Kinky Kylie was the main event, and you can see the relatively restrained drive in the video below.

Vettel was reunited with the 2011 Red Bull RB7 chassis No. 1, affectionately known as Kinky Kylie. Kylie gave Vettel his second world championship, while the RB8 driven by Coulthard secured him his third. The RB8 obviously wasn't as adventurous as Kylie, as she was simply called Abbey.

The reason Vettel returned to RB7 is to promote his initiative called Race Without Trace. Basically, Vettel is showing people that you can still have fun with synthetic fuel. This is a brilliant endeavor, as people still have a lot of questions surrounding the topic.

We explored the topic in-depth before, and Aramco recently announced that it's exploring the possibility of investing in full-scale production.

Porsche-backed HIF will start producing synthetic fuel on an industrial scale in 2027, potentially making the USA a leader in the field.

"[I hope] the fun that I have inspires people to think of what fun they want to have, or do have, and probably can have in a more responsible way. It might be small steps we're taking at a time, but they're all worth it," Vettel said in an Instagram post.

As you can see in the video, neither RB7 nor RB8 went for an outright lap record. Red Bull made it clear that its historic F1 cars are only there to run demonstration laps, which is a pity. You can see Vettel play around, but both machines were stopped from going too fast by BMW pace cars.

At least the duo gave spectators a taste of the small-capacity, high-revving V8 engines, which sound better than the 1.6-liter V6 hybrids we're stuck with until the end of the decade. Ralf Schumacher also used the Williams FW25 to give new fans a taste of the V10 era. FW25 is powered by a BMW-built V10, producing 940 horsepower @ 19,200 RPM.

We expect more videos to debut on Red Bull Motorsport's channel in the next few days, and we'll post anything worth watching.

And in case you're wondering, Max Verstappen wasn't allowed to attend. Red Bull's oberfuhrer, Helmut Marko, stopped any attempt from the Flying Dutchman, knowing that he only has one setting, which is full send.