I was driving a chevy spark 2015 to my local supermarket, less than 3 or so miles from my home. i was several miles under the 40 mph speed limit. i was in the right lane of a two lane road. i could see stopped traffic quite a ways ahead of me ' also in the right lane. there were at least 6-7 cars in front of me and a truck in front of the cars. i could see the cars/truck were stopped for the stoplight but they were quite a ways ahead of me. there was no one in the left lane so i decided to make a lane change as there was plenty of room ahead of me to do so. the next thing i knew i lost control of my car and it seemed to accelerate and slammed hard into the car in front of me. the police officer called to the scene said i couldn't have been making a lane change because i hit the car in front of me. i explained to him several times that i was definitely making a lane change but i could not explain the accident or how i had hit a car in front of me. the police officer told me i must have been distracted. i told the officer i was definitely not distracted and was very aware of my surroundings and the other vehicles. the officer again told me i couldn't have been making a lane change since i hit the car straight on. it was actually the police officers' assertion that i couldn't have been making a lane change that later made me look online to see if there were any other complaints about chevy sparks. i discovered driver complaints about steering wheel lockup and acceleration problems. i wasn't certain about anything at the time of the accident except that it made no sense given the fact that i was in the process of making a lane change just before i hit the other car. however, i am now convinced the accident was the result of something outside of my control and i believe there was an issue with both the accelerator a well as the steering wheel locking up.