2020: With his first season racing with BimmerWorld Racing in the SRO GT4 SprintX series, Walker made himself right at home, helping bring the team third-place overall standing in both the team and driver standings.

Previously: Walker ran the TCR series in TC America in 2019, finishing with three podiums and two fastest laps. Over the past three years, he has entered 32 professional races, finishing with three victories, thirteen podiums, two pole positions, and ten fastest race laps. His day-job expertise in vehicle dynamics will bring further expertise to the veteran BimmerWorld team.