There have been a number of eco-friendly transportation announcements over the past few days, so here’s a quick round up of the ones that caught our attention:

• A cardboard bicycle from a student at Sheffield Hallam University in the UK. Created initially in an attempt to reduce theft, the low cost cardboard bicycle which is made almost entirely from recyclable and recycled materials and uses interchangeable mechanical parts.
• Inhabitat reports that Mercedes Benz intends to convert their entire line up of luxury cars to alternative fuels by 2015. That might sound like a long time in the future, but it is only 7 years away!
• SolarLab will be launching a solar powered rickshaw in London next year as a pilot program. If it performs well there, it will be released into other cities around the world too. The solar hybrids are human/electric hybrids combining pedal power and solar electric power from an array of photo-voltaic panels on the roof of the rickshaw. [Via InHabitat.]
• In Austin, Texas, Doug Pelmear claims he has modified a 1987 Ford Mustang engine, perfecting ideas his grandfather had 60 years ago, and his car now achieves 110 mpg. The car produces 400 bhp, and is claimed to go from zero to 60mph in just 3 seconds.

As oil prices continue to rise, consumers will become more and more interested in lower cost alternatives. Luckily for the planet, many of the solutions for reducing our dependency on oil are also good for the environment – a win, win situation.