Bäckman siblings joins ADAC GT4 Germany for 2023 Bäckman siblings joins ADAC GT4 Germany for 2023 Bas Kaligis / Thursday, March 9, 2023 0 400 Article rating: No rating The siblings Andreas and Jessica Bäckman from Sweden today announced that in 2023 they will be sharing a car and racing together in ADAC GT4 Germany for PROsport Racing Team in an Aston Martin GT4 car. Read more