DETROIT: General Motors says it will invest $1.5 billion in its North American factories this year.    

North American President Mark Reuss announced the figure in a speech Wednesday night but gave no details. The company says specific plants and job numbers will come later.

GM is revamping 70 per cent of its US models as it switches from the oldest lineup in the industry to the newest.

Reuss says the investment is in addition to the $10.2 billion GM already has spent on its factories since July of 2009. The company has added about 2,000 US jobs since then.

GM recently unveiled new full-size pickup trucks, a completely redone Chevrolet Corvette and a Cadillac luxury version of the Chevrolet Volt plug-in electric car. It says more announcements are coming.