My car stopped suddenly & ignition cut. Why? Restarted fine. No dash probs

What is your question?

I was braking moderately heavily into my driveway as usual but this time my car came to an immediate halt just as I was abt to change down to 2nd & the engine cut out simultaneously, like it wld in an accident. I hv felt abs shudder before so I know what it is, but this was something else. My car came to a dead stop & shut down! Is this how abs works in a mk 3 spyder? There was no indication on my dash of an error when I restarted the engine (I didnt notice one when it stopped so maybe it was functioning as it should? But there was no abs light either) And it drove ok the short distance (20m) from the curb to my garage. Ive never experienced this in my car & im sure ive pushed it harder in the 11 years ive driven it from new. I was only doing 50-60kmh in 3rd before I began to brake. Car has done 83000km and is serviced annually, plus some. Had front bumper replaced last week after a driver reversed into my parked car. Will someone pls enlighten me? :-)