> But they're illegal in F1 - because they make the car sound boring.

I can confirm, my CMAX has an eCVT, and the engine noises are boring. Either it's off, or it's running in a pretty limited range, you can get a bit of fun rev increasing noises if you drive it just right... but mostly boring. My 81 VW Vanagon is much more fun to drive even if it's objectively worse at everything in terms of acceleration, top speed, wheel slip, etc; although the turning circle on the cmax is garbage, so the vanagon wins there. The VW makes fun sounds as you go from low rpm to redline several times as you work through the gears, and the cmax is just droning along.