Aston Martin DB11 Owner's Handbook Manual page 121

Two-Stage Anti-lock Braking System (ABS)
The Anti-lock Braking System (ABS) will change its operation
depending on ESP mode.
Stage One
When ESP is set to ON, the ABS is tuned to give a level of vehicle
performance, control and stability under braking that will cover
everyday driving situations and weather (dry, wet, ice and snow).
Stage Two
When ESP is set to Track or OFF, the ABS is tuned to allow more
experienced drivers to drive closer to the limits of the vehicle's
ability and enjoy its natural balance in a track environment.
When the ABS is set to stage two, the ABS is applied in the
following ways:
• The Electronic Brake-force Distribution (EBD) increases
braking force to the rear of the vehicle. This is done by
allowing a greater level of slip at the rear axle and a quicker
increase in pressure in the rear brakes. Cornering agility will
be enhanced when braking, but the driver will experience
more vibration through the brake pedal.
• The ABS will allow more slip when the tires are at a higher
working temperature, such as when the vehicle is driven on a
track. The driver will have more control over brake
performance before the ABS is activated.
• Braking performance is given greater priority over stability in
areas with different friction surfaces. Increased steering input
is required to maintain the direction of travel, but optimum
vehicle deceleration is achieved.
• The ABS provides a more aggressive pressure increase for
situations where a wheel can become temporarily unloaded,
such as in track sections featuring fast, tight corners, strong
cambers or high-speed crests.
5.23
Driving