Making electric cars isn't rocket science -- it's a lot harder.
After a staggering few years, things have turned a corner for carmakers hoping to make a profit in the U.S. Now easier credit is likely to send sales skyrocketing.
All the good news for U.S. automakers shouldn't gloss over the big problems that still remain.
For years, GM's luxury division has fruitlessly chased BMW and Mercedes-Benz. Its 2013 XTS sedan is the brand's first real shot at taking sales away from them.