General Motors Co. will invest $120 million to manufacture the Chevrolet Trax crossover and a new generation of big pickups at plants in Mexico, according to GM Mexico president Ernesto Hernandez. GM is planning to build the small SUV crossover in the central state of San Luis Potosi. Hernandez said that the Trax will be seen this September at the Paris Motor Show before it arrives in the fourth quarter at the Mexican market. About $200 million more will be invested in GM's Silao plant in Guanajuato state where it will start to work on a new generation of full-sized pickups in 2013. Hernandez said that 1,000 new jobs will be created from the investment that amounts to $420 million. Last May, GM said that the Trax will be available in 140 countries but not in the U.S. However, it will share the platform that was used on the Aveo and Sonic subcompact sedan. The Sonic is offered in the markets in the U.S. and Canada. Meanwhile, the Aveo is available in the other parts of the world. GM didn’t reveal further details about the Trax’s price, length, weight, and fuel economy.