The following cars represent the most technically advanced available.
The 2014 Volkswagen Jetta TDI offers basic transportation at a bargain and an excellent engine, but techies will want to hold off for the improved 2015 model.
Stirling Energy Systems, which once had giant utility contracts, heads to bankruptcy amid a price war and technology shift away from solar thermal and toward photovoltaics.
Stirling Energy Systems and Tessera Solar open a factory to build large reflective dishes that use the sun's heat to make electricity with little water.
At less than one micrometer in size, the microscopic nanomotor could revolutionise controlled medical drug delivery.
Clean-tech company raises $50 million to bring its reflective dish to solar power plants.
With many tech touches in the cabin and a comfortable ride, the 2014 Toyota Highlander works well for the modern family, but it won't win any prizes for fuel economy.
Pricing not available
Solar thermal. It's the hot word.
Though its standard cabin tech is a mixed bag, the 2015 Volvo S60 T6 Drive E boasts loads of available safety features and one of the most complex and entertaining powertrains in this class.
The new Corvette Stingray has been winning awards left and right since its unveiling last year. We speak with the car's chief engineer about the just-unveiled Z06 edition, and how that became the C7.R racer.
The usefulness of connected features outweighs their hodgepodge organization in the 2014 BMW X5 xDrive35i, and the mediocre fuel economy might be a price worth paying for the excellent driving dynamics.