Active Rear Wing - Lexus LFA Owner's Manual

Active rear wing

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The LFA's active rear wing operates on a speed-linked schedule in accordance with
the selected driving mode. Control is performed by the ECU (Electronic Control
Unit).
Vehicle speed-linked active control allows for a reduced drag coefficient (Cd value)
when the wing is stowed. The wing is automatically raised to control airflow and
provide an appropriate level of downforce (-Cl value) at higher speeds, contributing
to handling stability.
Depending on the driving mode, the
active rear wing will rise in approximately
5 seconds when the vehicle speed
exceeds 50 mph (80 km/h) or 81 mph
(130 km/h) respectively.
The wing will automatically lower in
approximately 7 seconds when the
vehicle slows to 25 mph (40 km/h) or
less.
The difference in rising and lowering
speeds is intended to minimize undesired aerodynamic changes due to frequent
operation.
Active rear wing operation speed
Driving mode
SPORT/NORMAL/WET
Lowered
25 (40)
Speed [mph (km/h)]
28
Raised
50 (80)