I just drove a Fisker Karma through the traffic of Los Angeles, the hills outside Los Angeles and back through the heart of Los Angeles. I drove it like any other car in a ride and drive.
All new technologies are going to have an issue, some are going to be known, some aren't. The first Volt I drove stopped when it ran out of electric mode. It had a full tank of gas, but a sensor wasn't working and it didn't register to go into gas mode.
We are sharing about 88 million barrels of oil a day with a billion cars in the world. The US has about 240,000,000 of those cars. By 2050 the International Transport Forum says we will have 2.5 billion cars on the road.Where will we get the gasoline for all those cars?
Advanced technology is in its infancy. I applaud Consumer Reports for letting us know the issues behind the advanced technology. I don't know what the problem is, but I like the idea of the Fisker Karma/chevy Volt/Opel Ampera technology.