You'd think that self-driving cars would be most vulnerable to remote hacks, but the biggest danger may come from someone nearby with a handful of cheap electronics.
According to some numbers crunched by the Institute of Electrical and Electronics Engineers (IEEE), weight ratios in modern cars are creating a giant problem with overall efficiency. Car weights are climbing, but passenger loads aren't, and this is the truly limiting factor when it comes to energy efficiency.
Every year, IEEE Spectrum puts together a list of the best and worst technologies and it turns out that two of 2009's biggest losers are the Chevrolet Volt and cellulosic ethanol. What earned these two a place alongside D-Wave Systems' quantum computers and airport security? Too much hype, too many promises and too much money.