Dr. Alexander Marmureanu is actively involved in several charitable organizations both at national and international level.

2018 Porsche Challenge at Pikes Peak

Dr. Alexander Marmureanu participated in the first-ever Porsche one make-category at Pikes Peak's International Hill Climb. The Broadmoor Pikes Peak's International Hill Climb (PPIHC) challenge nicknamed as "The Race to the Clouds" is a premier annual motorsport racing event at the Pikes Peak summit situated in Colorado. The racing event takes place annually on the last Sunday of June. This enthralling race was first arranged in 1916, by a person called Spencer Penrose, founder of The Broadmoor Hotel, Pikes Peak Highway and El Pomar Foundation. Pikes Peak is known for its merciless route that runs through Pike National Forest. This racing requires drivers to complete a stretch of 12.42 miles of a public toll road that has as many as 156 turns.

For the first time in nine decades, on June 24, 2018, Porsche made its debut at Pikes Peak challenge and had an honor of getting into an official class one-make category - the Porsche Cayman GT4 Clubsport Pikes Peak Hill Climb Trophy sponsored by Yokohama. There were four variants of Porsche Cayman GT4 Clubsport - Clubsport, Clubsport Trophy Specification, Clubsport MR, and Clubsport 2017 IMSA GS.

Dr. Alexander Marmureanu, Los Angeles's best thoracic and cardiovascular surgeon was the final finisher in the class driving the No. 10 entered by Rearden Racing to sixth-place in class, 53rd overall with a time of 13:11.856.