In 2095 most vehicles are powered by electricity or biofuels or off-world, solar panels, as fossil fuels are now almost depleated and extremely expensive to extract. Many 'Old-Tech' vehicles have been retrofitted with new engines to be compatable with new fuels, and some even with hover conversions. Most vehicles however do not have hover conversions, and the styling is somewhat retro, and utilitarian. In most of Earth's cities traffic is a major problem, with many traffic lights either not working or being ignored, with a mismatch of vehicles interwinding between each other, or people wandering out into the road in the middle of traffic.