Via one of my favorite sites AutoBlogGreen comes news that Volvo might one up GM's Volt concept that I wrote about last month. I say one up because it has the same idea - plug-in at night, range extender engine re-charges the batteries - but it uses a diesel engine. Diesel engines have fantastic efficiency running at consistent speed, and with this technology it would be running at 1 speed all the time when on.
I would not buy anything Volvo has to offer right now. Since they were purchased by Ford in 1999, they have been pushed up to Ford's high end luxury car market with safety being their brand selling point (as always). But, if they can manage to pull this off before GM, and sell it at a reasonable price, they would have a winner!