if your regular brakes are overheated, unless you're driving a
corvette or some other car with an exotic e-brake setup, hitting the
e-brake is actually going to get you LESS than hitting the regular
brake pedal. reason? they use the SAME brakes! (well, the rear set
of your normal brakes anyhow. with the exception being like i said,
on the corvette, & possibly a very few others). your BEST bet is
if you HAVE to do lots of quick hard stops like that, & don't
already have metallic pads, get them. secondly, you could try
cross-drilling your rotors to improve cooling (motorcycles & auto
racers have been doing it successfully for years). when brakes are
that overheated though, continuing to hold the pedal down will only
increase the time it takes before you will be able to use them again.
the sooner you let off, the sooner they'll cool, and the sooner
they'll work again. they can cool down surprisingly fast, so if you
have enough distance, let off the brakes for a second or two if you
can, then re-apply. i know from experience that the amount of
braking you'll get from your trans may slow you down a bit, but it
wont bring you anywhere near a stop (i.e. if you're racing from light
to light, & you're at 80 & realize you have no brakes,
dropping the trans down into low might get you slowed down to about
65 before you go flying thru the intersection).
>> Stay informed about: Emergency Brakes When Regular Brakes Fail