Bubble cars have never been cool. They've always been driven by affected old men whose hobbies include train spotting and pigeon racing. Uncool doesn't necessarily mean ugly though; but it does in the case of the Pivo 2. Its cartoonish, bulbous proportions make this one concept car that never deserves to see the light of day, even if its Lithium-ion powertrain make it extremely eco-friendly. If this is what it's going to take to save the planet, then let the rainforests suffer.