When the Beach Boys sang “Giddy up, giddy up 409” it was 1962. The surfer boys reveled in power of the new Chevy Impala, the muscle car of its time, with a monster 409 cubic inch engine under the hood. Today, Ford and SunPower are hopeful some Gen Z band may soon sing with equal enthusiasm about their “2.5.” Earlier this month, the two companies launched a unique partnership involving co-marketing a 2.5 kW rooftop solar system and the all-electric 2012 Ford Focus. The rooftop solar system promises to provide enough electricity to drive the electric vehicle at least 1,000 miles a month, which is 3,000 kWh/year. After tax incentives, motorists could drive courtesy of solar energy for the combined price of somewhere between $32,500 and $39,500. The solar system is to cost $10,000 out-of-pocket after tax incentives. Local and state incentives--like the California Solar Initiative--could even further whittle down the system’s cost. In addition, there’s the cost of car. Ford expects to soon announce a price for the 2012 electric Focus of between $30,000 and $37,000. Buyers can lop $7,500 off that price with a federal tax incentive, making the net cost of the car somewhere between $22,500 and $29,500. San Jose-based SunPower chief executive officer Tom Werner called the package deal “a comprehensive sustainability program.” Under the two companies’ so-called “Drive Green for Life” program, motorists are still likely to charge their cars at night when they’re home. Consequently, the solar panels generally won’t be producing the power that actually charges the vehicle. However, Ford global vehicle electrification and infrastructure director Mike Tinskey notes that the solar panels effectively would offset the power used to charge up the vehicles by lowering electricity bills with the power they produce during the day. The solar system also is to be marketed in conjunction with a forthcoming plug-in hybrid electric vehicle Ford plans to roll out later in 2012. Chargers for both vehicles are to be sold at Best Buy. Needless to say, California is one of Ford’s target markets for electric vehicles, which signifies that the auto giant will be putting its weight behind the state’s distributed generation hopes. Motley Fool analyst Evan Nu observed the deal is good for both companies, but weighted a bit more favorably for SunPower, which gets the chance to market its solar panels to “eco-conscious” motorists. “Giddy up, giddy up 2.5.”