In 2013, CamperDays.de, a comparison portal for the worldwide rental of motorhomes, was launched as part of billiger-mietwagen.de. Since 2018, ProSiebenSat.1 has held 100% of the shares in the company together with co-investor General Atlantic. In 2022, CamperDays was named best comparison portal for RV rentals by the renowned Stiftung Warentest and currently offers a fleet of over 35k campervans, with more than 320 pickup stations in 30 countries worldwide. With nearly 10 years of experience in the industry, CamperDays ensures a transparent and customer-friendly presentation of offers and provides free customer service by telephone.