People have been asking me what I think about this. I think it's rubbish, and here is why:
The death rate is so vanishingly low that a law specializing in death by dangerous trousers is more urgently needed. Seriously, we have an accident category for them in A&E and everything.
The crime is already covered by manslaughter. Only a petrolhead would fail to spot that, because they have special super-lax and weakly applied laws to make them feel better about screwing up. Or maybe they have spotted it and are keeping stum in case they feel "the full force of the law" themselves. Imagine how people would drive if they expected a manslaughter charge for killing people?
It's a tribal sop to Clarkson Man, who feels aggrieved by fuel prices and such, and who likes to see those naughty cyclists kicked. This fits in with the current Hammond transport vibe, which is so petrolheaded that it looks like he wants to replace Hamster Hammond. That would make Cameron into Captain Slow, which is a pity because I like Captain Slow, but he is posh and they are all mates. Yes, your transport policy is being run by Top Gear.
Note that every discussion you have with anyone about this proposed law changes within a couple of sentences from death to red lights and chavs on the pavement. It's nothing to do with the issue. It's pure vacuous politics and it stinketh.