Well I'm the proud owner of an HPI RS4 Mt2 with the T15 engine. This dude is fast but want to see how much better and faster the 3.0 is. So far and It is my fault to start with too. ( didn't go over the truck when I got it to make sure all parts where ok.) I want to run and me and my son got some good runtime out of it. Then screws started backing out which amount into lost screws and bushing to the front wheels. Nice line of aluminum parts on ebay. I order new parts. While new parts or being shipped got to go to the closest hobby discovered they had Hpi half price. Got some spare parts. Desided the grass was to hard on the drive train. Disked in a track got that set up. Then the gear comes right out of the clutch bell. Waiting on more parts to come in. Those who say a rolling chais is a good idea Make me think they have been here before lol. Still like the truck though just need a few spare parts so if you need one buy two.