B4.1 is still a great car...
The whole mid motor thing is born out of our high grip tracks, which that layout and weight balance suits, so probably is slightly better for that ultimately or we wouldn't all be doing it.
But, when I first made the switch to mid motor with an x6 a few years ago I found that my quick laps were no quicker than with the B4, it was just that I could hold those faster laps more consistently with the x6! Now have a Centro myself which I love...more nimble and balanced than the x6 for me so far.
If your on astro or carpet, the mid motor thing is possibly ultimately better suited, but on dirt or even grass maybe, the rear motor thing is still very much the layout of choice, and the B4 still totally competitive.
But I wouldn't worry about your trusty B4....great car either way, IMO best car to start out with and progress from, as it could still win the worlds in the right hands! Still found and run successfully in just about every offroad club in the country, with great parts and setup support!
Fear not
