GM to retool factory for new Impala

General Motors plans to idle the plant where it assembles the Chevrolet Volt plug-in hybrid for four weeks starting next month to retool for production of the all-new 2014 Impala and a small number of 2013 Malibus. GM will close its Detroit-Hamtramck plant from Sept. 17 until Oct.

Will Volvo need a JV in China with itself?

Western car makers wanting to operate in China need a joint venture with a Chinese partner. And it looks like Volvo is going to have to partner with itself to keep officials happy. The Chinese authorities are keen to make sure that Western car makers can’t just rock up on their doorstep, open up a factory or three and flog cars in the most populous nation on earth.

Best and worst states for car insurance prices

Drivers in Louisiana and Michigan are hit hardest when it comes to car insurance premiums, while those in Maine and Iowa pay the least, according to here. Ten most expensive states (average annual premium) -- Louisiana: $2,699 -- Michigan: $2,520 -- Georgia: $2,155 -- Oklahoma: $2,074 -- Washington, D.C.: $2,006 -- Montana: $1,914 -- California: $1,819 -- West Virginia: $1,816 -- Rhode Island: $1,735 -- Kentucky: $1,725 Ten least expensive states: -- Maine: $934 -- Iowa: $1,028 -- North Carolina: $1,085 -- Ohio: $1,106 -- New Hampshire: $1,112 -- Idaho: $1,133 -- Vermont: $1,176 -- Indiana: $1,183 -- Washington: $1,226 -- Arizona: $1,227