Microsoft and Turn 10 Studios have proven themselves adept at being purveyors of fun and excitement when it comes to injecting a little wackiness into the Forza video game franchise. This time, the developers of the Forza Horizon 4 are venturing off the beaten path into a world where blocky cars and blocky race tracks reign supreme. Following the success of the Hot Wheels expansion pack on Forza Horizon 3, Microsoft has teamed up with LEGO to unleash the LEGO Speed Champions Expansion Pack. Microsoft dropped the bombshell news at the 2019 E3 Gaming Expo. The Lego Speed Champions DLC for Forza Horizon 4 launches June 13.