Can't decide on the colour of your next car? Well, BMW has you covered with their all-electric iX Flow, which changes from black to white at the push of a button. The German automobile firm unveiled the chameleon-like sports activity vehicle today at the Consumer Electronics Show, which is being held in Las Vegas, Nevada. The colour changing ability uses the same'E ink' electrophoretic technology built into the screens of e-Book readers, except applied to a special car body wrap. Electrophoresis works by using an applied electric field to separate molecules -- in this case, black and white pigments -- based on their respective electric charges.

At this year's CES, Sony has unveiled a follow up to the electric car it revealed at the same event two years ago. The new prototype is an SUV that the company is calling Vision-S 02. Sony took the sedan's EV and cloud platforms and put them in a new form factor to create the vehicle, which features a large interior that can seat seven. The electric SUV has sensors all over its body, including CMOS image and LiDAR sensors for its driver assistance system. Sony says it's conducting tests in Europe as part of its efforts to release a Level 2 driver assistance technology on public roads.