my friend has a 96 accord v6 auto. earlier we were driving, and we pulled out into traffic, he had to get on it hard to merge with on coming cars. he spun his tires a little bit, and the car started hesitating. my first thought was that it was traction control or something. but he said that his car had never done that before. we got on the freeway, and he stood on it. we did it from a 30 mph roll so we knew that he wasn't spinning his tires. right at about 4k, it hesitates. but after that, it pulls hard all the way to redline. what could this be?