Caitlyn Jenner and Sophia Hutchins
Pictured: Caitlyn Jenner and Sophia Hutchins attend The Hollywood Reporter’s Empowerment in Entertainment Event at Milk Studios in Los Angeles on April 30, 2019. Getty Images/Valerie Macon

After stepping out with partner Sophia Hutchins for a charity event, Caitlyn Jenner grabbed the chance to drive her favorite sports car on the race track this weekend.

On Saturday, the former Olympian took to Instagram to share a clip of her thrilling ride when she finally put her black and yellow 2019 Porsche 911’s speed to test at The Thermal Club’s racing circuits.

“I finally got to track my car! On the back straight I topped out at 150mph. So much fun,” Jenner captioned her post, which showcases her car’s amazing speed.

Earlier in the week, Caitlyn got glammed up for the 10th Annual “Big Fighters, Big Cause” Charity Boxing Night in Beverly Hills with her rumored girlfriend, Sophia. The event on Wednesday night benefits the Sugar Ray Leonard Foundation by former professional athlete and legendary boxer “Sugar” Ray Leonard.

For the charity event, Jenner and Hutchins donned color-coordinated outfits. The former Kardashian-Jenner patriarch donned a simple form-fitting black dress and a matching pair of heels. On the other hand, the aspiring model rocked a pair of white pants, a black top and a paisley-patterned white cropped jacket. Hutchins also sported open-toe heels for the occasion.

Upon arriving, Caitlyn and Sophia stunned the crowed by posing side by side on the red carpet. After posing for the cameras together, the two were joined by the host of the event for some snaps, according to Daily Mail.

Jenner and Leonard have been good friends for years now. Jenner, who also has her own foundation, complimented her friend on social media. She shared a photo she took with the boxing icon and shared it on her Instagram. In her caption, Kylie Jenner’s father expressed how proud she was of her friend’s work with his foundation.

The Sugar Ray Leonard Foundation seeks to raise funds for research and care for pediatric type 1 and 2 diabetes and raise awareness for both diseases. Leonard and his wife, Bernadette, founded the organization in 2009.

Meanwhile, the Caitlyn Jenner Foundation promotes equality, combats discrimination in the workplace and advances transgender rights. Hutchins serves as the executive director of her partner’s foundation.