KBB then uses some funny math to factor in the effect of the $7,500 tax credit, boosting the car’s value to 51 percent, better than the Toyota Prius or the Ford Focus. But a tax credit doesn’t lower the car’s MSRP, and there are too many variables involved to set an accurate residual value.
Consumer Reports noted
that fuel-efficient hybrids and diesel models often depreciate far less than most vehicles. And the Volt’s heavy dependence on emerging battery technology is another wildcard. GM has announced that the next-generation Volt’s battery will have twice the capacity and cost less, making the first generation cars obsolete when the new ones come out in 2015—like yesterday’s cell phone.
Gas prices are surely another wildcard. If they keep going up, so will used Volt prices.