Define dire...
IMHO the e-CVT gearbox in my RC is a remarkably mechanically 'simple' solution to getting energy from the generators (be it ICE or electric) to the wheels. There is no meshing and separating of cogs, as in a manual 'box. There are no clutches and brake bands to wear out, as in a conventional automatic 'box. They are also remarkably compact and maintenance free.
Using clever computer control, constantly engaged, spinning cogs can generate infinitely variable ratios,giving seamlessly smooth acceleration. Switch to Sport mode and it can also create defined, stepped gearing, giving the illusion or a conventional 'box be it manual or automatic. Engine revs rise and fall, just as they do in conventional drive trains. I can select gears which 'change' instantly, faster than any other 'box.
I really love using, or not using depending on my mood, the e-CVT gearbox. All the advantages of both manual and automatic boxes, without the drawbacks.