Comment Re:Safety (Score 2) 509
Well you have some good points and some bad points.
First of all, you're absolutely right that safer vehicles breed less safe driving. It's a well-known, well-measured effect that needs to be considered every time a new safety device is considered.
That said, the idea that all accidents can be avoided with better driving is just crap. People screw up. I generally consider myself a pretty careful driver and I have had my share of mistakes. Anyone who is a safe driver should be able to identify many instances where they 'got away' with a lapse in concentration. Maybe you didn't see a car in your blind spot and almost hit them. Maybe you pushed that yellow light way further than you should have. Maybe you drove when you knew you were tired.
I have personally crashed a brand-new Prius into an SUV and done $20k worth of damage. Was I driving recklessly? No. Was I tired, on the phone, or drunk? No. But I was looking at the stopped car in the far lane instead of the moving car in the near lane, and by the time I pulled out to make the turn it was too late.
Chances are good that you'll screw up at some point.
Does this mean that we all need to drive tanks? No. But it does mean that you need to consider the risks of a supermini vehicle. A 'safe' supermini cannot protect you as well as a 'safe' larger vehicle. It doesn't need to be an SUV and it doesn't need to have crappy mileage.
The fact that people have anecdotes about how a Smart or another tiny car survived doesn't mean shit. In some kinds of crashes a supermini will do perfectly fine. In others it will be absolutely screwed.
The data, on the other hand, shows that heavier vehicles are safer. Yes, there are unsafe heavy vehicles, and yes, there is a spectrum of crash-worthiness among light vehicles from "total crap" to "decent". But in any given crash - be it single vehicle or multi-vehicle - the best smallest vehicles do not come close to the best heavier vehicles.
There is a risk trade-off here. The lowest risk option is not to drive at all. The highest risk option involves vehicles that provide little or no protection (like a motorcycle). And there is a spectrum of options in-between.
People need to be made aware of the negative consequences of their choices. In a world where gas is effectively free (relative to the cost of a vehicle) many people are going to choose inefficient vehicles. When the true cost of the fuel (including carbon emissions) is factored into the price, people will choose more efficient vehicles, drive less, or elect not to drive at all.
But you have to be careful not to throw stones from your glass house. There are many factors that have as much of an impact on your carbon emissions as the type of vehicle that you drive - like whether you eat meat and whether you use air-conditioning.
The most important thing is that you can't guess about how much energy something uses, because you're almost always wrong. Switching to washing your clothes in cold water (vs. hot) saves more energy than line-drying (vs. using a dryer). For me, in the summer months, using a fan to cool my apartment rather than the A/C saves more energy than not driving. Manufacturing and disposal are only a small part of the energy requirements in a car's life-cycle. Unplugging 'vampire' electronics is not going to save a whole ton of energy. Transit is not always a slam-dunk in terms of energy consumption, especially when it frequently runs at low utilization. Driving to the store to buy an item can often require more energy than having it shipped to you.