Karter Michael Koh steps up to GB4 with Arden Motorsport Karter Michael Koh steps up to GB4 with Arden Motorsport Bas Kaligis / Thursday, March 26, 2026 0 360 Article rating: No rating Singaporean karter Michael Koh will make his first steps into single-seater racing with the Arden Motorsport team in this year’s GB4 Championship. Read more