The GM M platform was the designation used by General Motors for the platform that underpinned the second and third generation Suzuki Cultus and its offspring.The preceding platform (the S-car) had been designed by Suzuki for their 1983 Cultus, and adopted by Chevrolet with the introduction of the Sprint.The platforms of the second and third generations first appeared in 1989 and 1995 respectively. They were designed at GM's Technical Center in Warren, Michigan, USA.