I don't know about outstopping a car, yes it is possible to do but I'd say it's on the dangerous side, I can stop very quick but if I try stop uber quick I'll just lock my back wheel up and I don't like doing that, my tyres are VERY fragile as far as skidding is concerned.
If you are doing 30mph then I can say yes 4-5m is easy, but I reckon a car can better it, anything over 30 and a car wins, I've been in the car and see how quick a car can stop from 40-50mph and I'd not want to try that on a bicycle, I cant imagine it finish well
I used to have a big heavy saracen X-Ray and it was hard to keep a high speed, I reckon I only average 16 mph on a very good day to college, 10 mile there 15 back, I could push it to about 28mph on the flat, was pretty touch but tbh I was not as fit as I am now, a slight slop got it to 31mph. If you compare a road bike, 31mph on the flat is quite easy sometimes.
When I was younger, I was on a mtb with front disk brake, and I was on the path (naughty me), car pulled out of driveway I slammed on, my bike did a back wheelie nearly vertical.