Tom Blomqvist will join the R-Motorsport Aston Martin GT squad for 2020 after his departure from BMW.
Blomqvist, who was released by the German manufacturer this month after five seasons, will race an Aston Martin Vantage GT3 for the squad jointly run by the Arden and Jota Sport teams in the GT World Challenge Europe Endurance and Sprint Cups next year.
There has so far been no announcement of team-mates for the winner of the Spa 24 Hours in 2018, but R-Motorsport's two-car campaign on the twin legs of World Challenge Europe is expected to include a number of the drivers who raced for the team in 2019.
Blomqvist, son of former World Rally Champion Stig, said: "I'm really looking forward to joining R-Motorsport, which is undoubtedly one of the best teams around in endurance racing.
"I've competed against them a few times and know just how competitive they are."
"The 2020 season promises to be a great year."
R-Motorsport team principal Florian Kamelger added: "Tom combines youth and experience, making him a valuable addition to our team."
Blomqvist also thanked BMW for his time at the marque, during which he raced in the DTM, Formula E, the IMSA SportsCar Championship and the World Endurance Championship.
The seat he occupied at the factory Rahal team in the IMSA series last year has been taken by Bruno Spengler after his departure from the DTM.
Blomqvist won the the blue-riband Spa round of the World Challenge Europe, then known as the Blancpain GT Series, two years ago aboard a factory-supported Walkenhorst Motorsport M6 GT3 shared with fellow factory drivers Philipp Eng and Christian Krognes.