No issue with my braking so far, I have ridden my mtb with full hydraulics down enough sketchy, steep, muddy, off camber downhills to have good brake control...

but I can't remember off hand at the moment where I found it, but there was some info on the general braking ability of a bike compared to a car, now it may have been a comparison for street riding. I think part of the issue is that under almost any circumstance beyond ideal, a car has the advantage of stability that pretty much never goes away thus the operator is left with less to deal with thus can devote more to the other tasks.
most obvious in all those bike to car comparos on youtube where the car will pretty much win on a road course where turning and braking becomes important.
Quote from another site as to why carsa stop shorter than bikes:
Bikes have better brakes. Cars have better physics.
Motorcycle brakes are capable of transferring more energy into heat, more rapidly, more consistently. But small contact patch and relatively high center of gravity means that they will lock up a tire or flip over well before the maximum stopping potential of the braking hardware is reached.
Cars are generally lower to the ground, have a longer wheelbase, and more rubber in contact with the ground than bikes
Simple physics means that bikes don't actually do almost anything better than cars on a purely by-the-numbers basis. Acceleration is a given, but again, the dynamics of the bike limits that.....if you can produce a car with the same power/weight ratio as a sportbike, it will more efficiently turn that power into acceleration, and likely have superior aerodynamics.
But the simple fact is that no car will ever be as fun or involving to pilot as a well-built motorcycle, and that's a fact that those who don't ride won't understand.
More evidence, though older I don't think things have changed much
:
Figures from the 27th April 2004 Autocar magazine:
Suzuki GSX-R 1000: 100mph - 0 in 5.63 seconds
Lotus Elise 111R - 4.09 seconds
Peugeot 206 Gti 180 - 4.39 seconds
Porsche 911 GT3 - 4.00 seconds (interestingly, the raw physics suggests that a 911 obtains a 50:50 weight distribution whilst braking fully).