i'm looking for some advice on a good engine for my 1/8 buggy. i want something as smooth as possible, it doesn't need to make a bunch of high end power, just smooth, easy to drive, and fuel economy. i am used to 1/8 electric where the power comes on smooth. top two on my list are the +4 and the P5xlt, but it looks like the P5 is geared more towards truggy. any recommendations would be great