Well I guess I'll start off by saying I have the b6d with laydown and the 22 3.0 laydown with the dirt tranny. I got the opportunity to test both cars yesterday. Now mind you first time ever running laydown. Both cars performed well. Both were fairly easy to drive compared to regular stand up 3 gear. The b6d I have not run in standard 3 gear. The 3.0 I have. We run on medium bite using super soft slicks. The losi felt more stable. The 6d felt a little more nimble. Lap times where nearly identical. Both had stock setups with just the laydown. My take is the losi so far seemed like I could push it harder. Where if I was smooth the b6d seemed better. One thing I hate about both are the battery straps. Just a pain to remove the battery if you run the wires over the strap. Just thought I would post my opinion so far