This is followed by the turn-in where the driver begins to steer the vehicle toward the apex. Traditionally, many drivers were taught to complete all braking before this turn-in portion and take a more circular path with a constant speed to the apex. Later, many racing drivers started to incorporate trail-braking into their corner entry.
Following the turn-in maneuver where the driver steers towards the apex, historically, many drivers were taught to brake completely before turning in and followed a circular path at a constant speed until reaching the apex. More recently, some racing drivers have started using trail-braking during their approach to the turn-in.