Team BMR Subaru racer Ash Sutton starred at Croft, taking a victory and two runner-up positions as he moved within 20 points of the British Touring Car Championship (BTCC) lead.
However, the event was overshdowed by a qualifying crash that left three drivers with serious injuries.
Triple Eight MG Racing’s Aron Taylor-Smith (MG 6), Motorbase Performance’s Luke Davenport (Ford Focus) and Eurotech Racing's Jeff Smith (Honda Civic Type R) were all hospitalised in the incident at Barcroft corner; Taylor-Smith was released later that day with a fracture to his foot, but the other two drivers remain in hospital with injuries that are described as "not immediately life-threatening".
Smith is described as being in a "serious but stable condition", with multiple chest injuries, extensive shoulder injuries, a broken left arm and concussion. Davenport has been placed in an induced coma with multiple chest injuries, lung damage, a broken right leg, broken pelvis, broken right arm and concussion. His condition is also listed as "serious but stable".
BTCC Croft - round 13