"The biggest problem (IMHO) is driver awareness and reaction time. "
I didn't really think of it like that until the day before yesterday. Driving home I turned right at a big round about that a 50mph dual carriageway goes through, with an exit to a smaller country lane. Turning right, one car stopped as one idiot in a Ford Fiesta ST sped past. No bother, it didn't affect me. His friend though, following/racing him in a Corsa didn't stop, nearly smashed in to me.
I slammed the anchors on, he tried to. If I had relied on him to stop he'd have gone straight in to the side of the car. Thankfully, I know the roundabout and I anticipate dickheads like him speeding over. Throwing the car into 2nd gear while braking helps so much in reducing stopping distances.
The wife was next to me, and she panicked (as she'd have took the full force of the impact if it happened - also I was driving my small Peugeot 107 so not a massive car). I joked with her saying it was a good job I changed the brake pads last week with Mintex pads, along with the brake fluid.
Yesterday on the way home the wife said she had spoken to her friends about our near crash yesterday, and she believes if she was driving the car at the time she'd have smashed in to the prick and would've been badly hurt because of the speed he was going and the direction of our car. She wouldn't have used the engine to brake as she'd be worried she'd stall it. And she'd be right to think that, as it'd be easy done. But, like you say, it's the reactions. I didn't stall the car when I did an emergency stop, as I new I had high revs and could tell when the car was slowed down enough for me to engage the clutch.
I've done nothing though to convince her she should drive me home after work during the week now though.