from the rules:
DANGEROUS CORNERS
Dangerous corners require more of a risk. You’ll need to choose
between tackling them at a slower speed or taking your chances to
get ahead of your opponents.
A number inside a triangle with a “!” placed in the centre of a
space indicates the highest Gear a player can be in whilst occupying
this space.
However, if a player occupies this space at the maximum speed allowed,
they must immediately add a to the result of their roll. This
additional may cause an immediate Loss of Control, depending
on their previous roll results for the turn.
You may of course be in a lower Gear than the one indicated with
no penalty.
Entering this space in a higher Gear than the one indicated results
in an immediate Loss of Control.
You may accelerate whilst leaving this space.
seems to indicate I shouldn't be seeing a warning going to 5 later in my turn?
so why the warning?
Table: 513655243 if it matters
weather sunny, proper tires on .. no warning flags ..