Agree with Peakki on all suggestions ... also see the earlier posted notes on possible improvements in this thread.
A couple more to check out:
A lover front arm (the current one is made for the previous 2.0 mm T-bar chassis), so we can drive the front wheels all the way down. 0.5 - 0.75 mm would bee fine.
Rear bulkheads lowered 0.5-0.75 mm (the current ones is made for the previous 2.0 mm T-bar chassis) ... there are room for 0.75 mm, but 0.5 mm would be fine
Many other manufactores seem to come with updated cars with a longer wheelbase ... plase check this out in combination with a more optimal weightdistrubution front/rear specifically for lipo.
Steering blocks in different hights maybe ... in 0.5 mm increments ... or with markings for cutoff.
About 2 mm longer ball studs for the steering blocks ... so it can be go all the way through when screewed in (with +4,5 shims).
Front Ride Height adjusteres in carbon (or aluminium) with 0.25 mm increments ... glad to see an all in one adjuster that can bee set in place without having to remove the bolts that attach the front, but only loosened. And please with the well known presicion of Yray, so there would bee minimal slup when installed, and with at presice and snug fit
And (eventually as an option) for the dreamers ... an Xray rearend that stands out and really works ... eventually inspired by the one from C Andy ... but CNCmilled the way that only Xray can do it
And last, but not least ... Keep the current good, stylish, high quality and precise X-ray layout all around.
Kind regards; Jens